{"id":3984,"date":"2025-07-09T10:16:00","date_gmt":"2025-07-09T10:16:00","guid":{"rendered":"https:\/\/science351.pt\/?p=3984"},"modified":"2025-10-02T11:50:47","modified_gmt":"2025-10-02T11:50:47","slug":"etilcelulose-um-olhar-critico-sobre-as-suas-propriedades","status":"publish","type":"post","link":"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/","title":{"rendered":"Etilcelulose &#8211; Um olhar cr\u00edtico sobre as suas propriedades"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3984\" class=\"elementor elementor-3984\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9bee541 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9bee541\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9825076\" data-id=\"9825076\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9d0c14b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"9d0c14b\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! 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elementor - v3.16.0 - 09-10-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h3 class=\"elementor-heading-title elementor-size-default\">Etilcelulose<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-44eeb70 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"44eeb70\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a98d9a8\" data-id=\"a98d9a8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0a0cb7f elementor-widget elementor-widget-text-editor\" data-id=\"0a0cb7f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 09-10-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>A etilcelulose \u00e9 sintetizada por uma rea\u00e7\u00e3o de eterifica\u00e7\u00e3o a partir da celulose, onde ocorre a substitui\u00e7\u00e3o de grupos hidroxilo da celulose por grupos etoxilo (-OC<sub>2<\/sub>H<sub>5<\/sub>). A sua estrutura qu\u00edmica gen\u00e9rica encontra-se representada na Figura 1.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-894e930 elementor-widget elementor-widget-image\" data-id=\"894e930\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 09-10-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"285\" height=\"133\" src=\"https:\/\/science351.pt\/wp-content\/uploads\/Etilocelulose-quim-1.png\" class=\"attachment-large size-large wp-image-3989\" alt=\"\" srcset=\"https:\/\/science351.pt\/wp-content\/uploads\/Etilocelulose-quim-1.png 285w, https:\/\/science351.pt\/wp-content\/uploads\/Etilocelulose-quim-1-18x8.png 18w\" sizes=\"(max-width: 285px) 100vw, 285px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-80f4e51 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"80f4e51\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d3f1a6d\" data-id=\"d3f1a6d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-61b22ae elementor-widget elementor-widget-text-editor\" data-id=\"61b22ae\" 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<w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"List Continue 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"List Continue 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"List Continue 4\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"List Continue 5\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Message Header\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"2\" QFormat=\"true\" Name=\"Subtitle\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Salutation\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Date\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Body Text First Indent\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Body Text First Indent 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Note Heading\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Body Text 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Body Text 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Body Text Indent 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Body Text Indent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"3\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" QFormat=\"true\" Name=\"Block Text\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Hyperlink\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"FollowedHyperlink\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"22\" QFormat=\"true\" Name=\"Strong\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"2\" QFormat=\"true\" Name=\"Emphasis\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Document Map\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Plain Text\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"E-mail Signature\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Top of Form\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Bottom of Form\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Normal (Web)\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Acronym\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Address\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Cite\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Code\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Definition\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Keyboard\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Preformatted\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Sample\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Typewriter\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"HTML Variable\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Normal Table\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"annotation subject\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"No List\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Outline List 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Outline List 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Outline List 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Simple 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Simple 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Simple 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Classic 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Classic 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Classic 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Classic 4\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Colorful 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Colorful 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Colorful 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Columns 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Columns 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Columns 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Columns 4\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Columns 5\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Grid 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Grid 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Grid 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Grid 4\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Grid 5\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Grid 6\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Grid 7\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Grid 8\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table List 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table List 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table List 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table List 4\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table List 5\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table List 6\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table List 7\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table List 8\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table 3D effects 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table 3D effects 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table 3D effects 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Contemporary\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Elegant\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Professional\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Subtle 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Subtle 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Web 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Web 2\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Web 3\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Balloon Text\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"1\" Name=\"Table Grid\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Table Theme\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" Name=\"Placeholder Text\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"1\" QFormat=\"true\" Name=\"No Spacing\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"60\" Name=\"Light Shading\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"61\" Name=\"Light List\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"62\" Name=\"Light Grid\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"63\" Name=\"Medium Shading 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"64\" Name=\"Medium Shading 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"65\" Name=\"Medium List 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"66\" Name=\"Medium List 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"67\" Name=\"Medium Grid 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"68\" Name=\"Medium Grid 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"69\" Name=\"Medium Grid 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"70\" Name=\"Dark List\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"71\" Name=\"Colorful Shading\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"72\" Name=\"Colorful List\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"73\" Name=\"Colorful Grid\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"60\" Name=\"Light Shading Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"61\" Name=\"Light List Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"62\" Name=\"Light Grid Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"63\" Name=\"Medium Shading 1 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"64\" Name=\"Medium Shading 2 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"65\" Name=\"Medium List 1 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" Name=\"Revision\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"34\" QFormat=\"true\" Name=\"List Paragraph\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"29\" QFormat=\"true\" Name=\"Quote\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"30\" QFormat=\"true\" Name=\"Intense Quote\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"66\" Name=\"Medium List 2 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"67\" Name=\"Medium Grid 1 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"68\" Name=\"Medium Grid 2 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"69\" Name=\"Medium Grid 3 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"70\" Name=\"Dark List Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"71\" Name=\"Colorful Shading Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"72\" Name=\"Colorful List Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"73\" Name=\"Colorful Grid Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"60\" Name=\"Light Shading Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"61\" Name=\"Light List Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"62\" Name=\"Light Grid Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"63\" Name=\"Medium Shading 1 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"64\" Name=\"Medium Shading 2 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"65\" Name=\"Medium List 1 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"66\" Name=\"Medium List 2 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"67\" Name=\"Medium Grid 1 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"68\" Name=\"Medium Grid 2 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"69\" Name=\"Medium Grid 3 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"70\" Name=\"Dark List Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"71\" Name=\"Colorful Shading Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"72\" Name=\"Colorful List Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"73\" Name=\"Colorful Grid Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"60\" Name=\"Light Shading Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"61\" Name=\"Light List Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"62\" Name=\"Light Grid Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"63\" Name=\"Medium Shading 1 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"64\" Name=\"Medium Shading 2 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"65\" Name=\"Medium List 1 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"66\" Name=\"Medium List 2 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"67\" Name=\"Medium Grid 1 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"68\" Name=\"Medium Grid 2 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"69\" Name=\"Medium Grid 3 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"70\" Name=\"Dark List Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"71\" Name=\"Colorful Shading Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"72\" Name=\"Colorful List Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"73\" Name=\"Colorful Grid Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"60\" Name=\"Light Shading Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"61\" Name=\"Light List Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"62\" Name=\"Light Grid Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"63\" Name=\"Medium Shading 1 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"64\" Name=\"Medium Shading 2 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"65\" Name=\"Medium List 1 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"66\" Name=\"Medium List 2 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"67\" Name=\"Medium Grid 1 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"68\" Name=\"Medium Grid 2 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"69\" Name=\"Medium Grid 3 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"70\" Name=\"Dark List Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"71\" Name=\"Colorful Shading Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"72\" Name=\"Colorful List Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"73\" Name=\"Colorful Grid Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"60\" Name=\"Light Shading Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"61\" Name=\"Light List Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"62\" Name=\"Light Grid Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"63\" Name=\"Medium Shading 1 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"64\" Name=\"Medium Shading 2 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"65\" Name=\"Medium List 1 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"66\" Name=\"Medium List 2 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"67\" Name=\"Medium Grid 1 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"68\" Name=\"Medium Grid 2 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"69\" Name=\"Medium Grid 3 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"70\" Name=\"Dark List Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"71\" Name=\"Colorful Shading Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"72\" Name=\"Colorful List Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"73\" Name=\"Colorful Grid Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"60\" Name=\"Light Shading Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"61\" Name=\"Light List Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"62\" Name=\"Light Grid Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"63\" Name=\"Medium Shading 1 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"64\" Name=\"Medium Shading 2 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"65\" Name=\"Medium List 1 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"66\" Name=\"Medium List 2 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"67\" Name=\"Medium Grid 1 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"68\" Name=\"Medium Grid 2 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"69\" Name=\"Medium Grid 3 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"70\" Name=\"Dark List Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"71\" Name=\"Colorful Shading Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"72\" Name=\"Colorful List Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"73\" Name=\"Colorful Grid Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"19\" QFormat=\"true\" Name=\"Subtle Emphasis\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"21\" QFormat=\"true\" Name=\"Intense Emphasis\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"31\" QFormat=\"true\" Name=\"Subtle Reference\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"32\" QFormat=\"true\" Name=\"Intense Reference\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"33\" QFormat=\"true\" Name=\"Book Title\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"37\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Bibliography\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"39\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" QFormat=\"true\" Name=\"TOC Heading\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"41\" Name=\"Plain Table 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"42\" Name=\"Plain Table 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"43\" Name=\"Plain Table 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"44\" Name=\"Plain Table 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"45\" Name=\"Plain Table 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"40\" Name=\"Grid Table Light\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"Grid Table 1 Light\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"Grid Table 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"Grid Table 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"Grid Table 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"Grid Table 5 Dark\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"Grid Table 6 Colorful\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"Grid Table 7 Colorful\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"Grid Table 1 Light Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"Grid Table 2 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"Grid Table 3 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"Grid Table 4 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"Grid Table 5 Dark Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"Grid Table 6 Colorful Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"Grid Table 7 Colorful Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"Grid Table 1 Light Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"Grid Table 2 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"Grid Table 3 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"Grid Table 4 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"Grid Table 5 Dark Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"Grid Table 6 Colorful Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"Grid Table 7 Colorful Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"Grid Table 1 Light Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"Grid Table 2 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"Grid Table 3 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"Grid Table 4 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"Grid Table 5 Dark Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"Grid Table 6 Colorful Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"Grid Table 7 Colorful Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"Grid Table 1 Light Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"Grid Table 2 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"Grid Table 3 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"Grid Table 4 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"Grid Table 5 Dark Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"Grid Table 6 Colorful Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"Grid Table 7 Colorful Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"Grid Table 1 Light Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"Grid Table 2 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"Grid Table 3 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"Grid Table 4 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"Grid Table 5 Dark Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"Grid Table 6 Colorful Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"Grid Table 7 Colorful Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"Grid Table 1 Light Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"Grid Table 2 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"Grid Table 3 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"Grid Table 4 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"Grid Table 5 Dark Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"Grid Table 6 Colorful Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"Grid Table 7 Colorful Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"List Table 1 Light\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"List Table 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"List Table 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"List Table 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"List Table 5 Dark\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"List Table 6 Colorful\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"List Table 7 Colorful\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"List Table 1 Light Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"List Table 2 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"List Table 3 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"List Table 4 Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"List Table 5 Dark Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"List Table 6 Colorful Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"List Table 7 Colorful Accent 1\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"List Table 1 Light Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"List Table 2 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"List Table 3 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"List Table 4 Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"List Table 5 Dark Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"List Table 6 Colorful Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"List Table 7 Colorful Accent 2\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"List Table 1 Light Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"List Table 2 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"List Table 3 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"List Table 4 Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"List Table 5 Dark Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"List Table 6 Colorful Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"List Table 7 Colorful Accent 3\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"List Table 1 Light Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"List Table 2 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"List Table 3 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"List Table 4 Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"List Table 5 Dark Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"List Table 6 Colorful Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"List Table 7 Colorful Accent 4\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"List Table 1 Light Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"List Table 2 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"List Table 3 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"List Table 4 Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"List Table 5 Dark Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"List Table 6 Colorful Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"List Table 7 Colorful Accent 5\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"46\" Name=\"List Table 1 Light Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"47\" Name=\"List Table 2 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"48\" Name=\"List Table 3 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"49\" Name=\"List Table 4 Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"50\" Name=\"List Table 5 Dark Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"51\" Name=\"List Table 6 Colorful Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" Priority=\"52\" Name=\"List Table 7 Colorful Accent 6\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Mention\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Smart Hyperlink\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Hashtag\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Unresolved Mention\"\/><br \/>  <w:LsdException Locked=\"false\" SemiHidden=\"true\" UnhideWhenUsed=\"true\" Name=\"Smart Link\"\/><br \/> <\/w:LatentStyles><br \/><\/xml><![endif]--><!-- [if gte mso 10]><\/p>\n<style>\n \/* Style Definitions *\/<br \/> table.MsoNormalTable<br \/>\t{mso-style-name:\"Tabela normal\";<br \/>\tmso-tstyle-rowband-size:0;<br \/>\tmso-tstyle-colband-size:0;<br \/>\tmso-style-noshow:yes;<br \/>\tmso-style-priority:99;<br \/>\tmso-style-parent:\"\";<br \/>\tmso-padding-alt:0cm 5.4pt 0cm 5.4pt;<br \/>\tmso-para-margin-top:0cm;<br \/>\tmso-para-margin-right:0cm;<br \/>\tmso-para-margin-bottom:10.0pt;<br \/>\tmso-para-margin-left:0cm;<br \/>\tline-height:115%;<br \/>\tmso-pagination:widow-orphan;<br \/>\tfont-size:11.0pt;<br \/>\tfont-family:\"Roboto Light\";<br \/>\tcolor:#787878;<br \/>\tmso-themecolor:background1;<br \/>\tmso-themeshade:128;<br \/>\tmso-ansi-language:EN-US;<br \/>\tmso-fareast-language:EN-US;}<br \/><\/style>\n<p><![endif]--><\/p><p class=\"MsoCaption\"><em><a name=\"_Ref208482273\"><\/a>Figura <span style=\"mso-bookmark: _Ref208482273;\"><span style=\"mso-no-proof: yes;\">1<\/span><\/span>. Estrutura qu\u00edmica da etilcelulose,\u00a0onde R = H ou CH<sub>2<\/sub>CH<sub>3<\/sub><\/em><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c2a73eb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c2a73eb\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e291333\" data-id=\"e291333\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7ee8597 elementor-widget elementor-widget-text-editor\" data-id=\"7ee8597\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>A etilcleulose \u00e9 biocompat\u00edvel, n\u00e3o i\u00f3nica, possui um baixo custo <a href=\"#_ftn1\" name=\"_ftnref1\">[1]<\/a><a href=\"#_ftn2\" name=\"_ftnref2\">[2]<\/a> e \u00e9 e aprovada pela <em>United Sates Food and Drug Administration<\/em> como <em>Generally-Recognized-As-Safe<\/em>. A solubilidade da etilcleulose varia dependendo do grau de substitui\u00e7\u00e3o (DS), sendo que quando apresenta um DS entre 1,0 e 1,5 \u00e9 sol\u00favel em \u00e1gua, e com DS entre 2,2 e 2,6 \u00e9 insol\u00favel em \u00e1gua, mas sol\u00favel em solventes org\u00e2nicos. De notar que a grande maioria das etilceluloses comerciais apresentam um DS entre 2,2 e 2,6 <a href=\"#_ftn3\" name=\"_ftnref3\">[3]<\/a>. Adicionalmente, a etilcelulose \u00e9 resistente \u00e0 luz, oxig\u00e9nio e \u00e0 humidade, possui resist\u00eancia t\u00e9rmica, \u00e9 est\u00e1vel na presen\u00e7a de v\u00e1rios produtos qu\u00edmicos e possui elevada biocompatibilidade com v\u00e1rios plastificantes e resinas. Todas estas caracter\u00edsticas tornam a etilcelulose um pol\u00edmero bastante promissor para a produ\u00e7\u00e3o de filmes resistentes \u00e0 \u00e1gua <a href=\"#_ftn4\" name=\"_ftnref4\">[4]<\/a>. Contudo, a etilcelulose apresenta tamb\u00e9m algumas desvantagens que importa salientar. Apesar das propriedades de barreira serem superiores \u00e0 maioria dos polissacar\u00eddeos, necessitam de ser melhoradas para considerar o seu uso mais generalizado em embalagens alimentares. Um outro aspeto a ter em conta s\u00e3o as propriedades mec\u00e2nicas, principalmente a n\u00edvel de alongamento, que para aplica\u00e7\u00e3o em embalagens flex\u00edveis necessitam de substanciais melhorias. Por fim, a cin\u00e9tica de degrada\u00e7\u00e3o \u00e9 relativamente lenta: a etilcelulose demora cerca de um ano a degradar-se completamente no solo (podendo este tempo ser reduzido para 3 a 10 meses, em condi\u00e7\u00f5es apropriadas de compostagem) <sup>1<\/sup>, mas apresenta uma grande resist\u00eancia \u00e0 degrada\u00e7\u00e3o em meio aquoso. Bading e coautores analisaram a biodegradabilidade deste pol\u00edmero em meio aquoso, atrav\u00e9s do teste em garrafa fechada (OECD 301D), concluindo que este pol\u00edmero \u00e9 n\u00e3o biodegrad\u00e1vel, dada a biodegrada\u00e7\u00e3o observada ter sido inferior a 5%, num per\u00edodo de 28 dias <a href=\"#_ftn5\" name=\"_ftnref5\">[5]<\/a>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5268f54 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5268f54\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f3bbcc7\" data-id=\"f3bbcc7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cd75977 elementor-widget elementor-widget-text-editor\" data-id=\"cd75977\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"color: #000000;\"><b>Propriedades de barreira<\/b><\/span><span style=\"color: #000000;\"><b>:<\/b><\/span><span data-contrast=\"none\">\u202f<\/span><\/p><p>Filmes de etilcelulose preparados por extrus\u00e3o, apresentam uma taxa de transmiss\u00e3o ao vapor de \u00e1gua (WVTR) de 107 g\/m<sup>2<\/sup> dia <a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\" name=\"_ftnref1\">[6]<\/a>. Valores inferiores s\u00e3o obtidos por <em>solvent casting<\/em>, 10 e 8 g\/m<sup>2<\/sup> dia, usando como solvente etanol e lactato de etilo, respetivamente <a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\" name=\"_ftnref2\">[7]<\/a>. Ao n\u00edvel de taxa de transmiss\u00e3o ao oxig\u00e9nio (OTR) estes filmes apresentam valores de 800 e 600 cc\/m<sup>2<\/sup> dia, usando etanol e lactato de etilo, respetivamente. Como \u00e9 percet\u00edvel, o m\u00e9todo de produ\u00e7\u00e3o e o tipo de solvente influencia as propriedades de barreira.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e9d8f85 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e9d8f85\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-560b987\" data-id=\"560b987\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e63a3bd elementor-widget elementor-widget-text-editor\" data-id=\"e63a3bd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"color: #000000;\"><b>Propriedades mec\u00e2nicas<\/b><\/span><span style=\"color: #000000;\"><b>:<\/b><\/span><span data-contrast=\"none\">\u202f<\/span><\/p><p>Filmes de etilcelulose preparados por extrus\u00e3o (190 \u00b0C, 35 rpm) apresentam propriedades mec\u00e2nicas extremamente influenciadas pela \u00a0massa molecular da etilcelulose. Com o aumento da massa molecular h\u00e1 um aumento no modulo de Young (392 a 569 MPa), resist\u00eancia \u00e0 tra\u00e7\u00e3o (14 a 20 MPa), e alongamento na rutura (2,9 a 4,3%). Filmes de EC dissolvidos em acetona e clorof\u00f3rmio, apresentaram maiores valores de resist\u00eancia \u00e0 tra\u00e7\u00e3o, 39 MPa, comparados com os obtidos por extrus\u00e3o. O uso de diferentes solventes promoveu diferentes alongamentos na rutura, 15% e 9%, usando acetona e clorof\u00f3rmio, respetivamente <a href=\"#_ftn1\" name=\"_ftnref1\">[8]<\/a><a href=\"#_ftn2\" name=\"_ftnref2\">[9]<\/a>.<\/p><p>\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-96ca062 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"96ca062\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6d33413\" data-id=\"6d33413\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0b29339 elementor-widget elementor-widget-text-editor\" data-id=\"0b29339\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\">[1]<\/a>\u00a0Wu, J. H., et al. Preparation of ethyl cellulose microspheres for sustained release of sodium bicarbonate. Iranian Journal of Pharmaceutical Research. IJPR 2019, 18(2), 556.<\/p><p><a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\">[2]<\/a>\u00a0Yang, J., et al. Extremely low-cost and green cellulose passivating perovskites for stable and high-performance solar cells. ACS applied\u00a0materials &amp; interfaces 2019, 11(14), 13491-13498.<\/p><p><a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\">[3]<\/a>\u00a0Adeleke, O. A. Premium ethylcellulose polymer based architectures at work in drug delivery. International Journal of Pharmaceutics 2019, 1,\u00a0100023.<\/p><p><a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\">[4]<\/a>\u00a0Su, X., et al. Preparation and characterization of ethyl cellulose film\u00a0modified with capsaicin. Carbohydrate polymers 2020, 241, 116259.<\/p><p><a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\">[5]<\/a>\u00a0Bading, M., et al. Analysis of environmental biodegradability of cellulose-based pharmaceutical excipients in aqueous media. Chemosphere\u00a02024, 352, 141298.<\/p><p><a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\">[6]<\/a> Shlush, E., Davidovich-Pinhas, M. Fabrication of bioplastic material based on ethyl-cellulose using hot-melt extrusion. Food Packaging and Shelf Life 2023, 40, 101206.<\/p><p><a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\">[7]<\/a> Horvat, G., et al. Simple, one-pot method for preparing transparent ethyl cellulose films with good mechanical properties. Polymers 2022, 14(12), 2399.<\/p><p><a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\">[8]<\/a> Yang, D., et al. \u201cGreen\u201d films from renewable resources: properties of epoxidized soybean oil plasticized ethyl cellulose films. Carbohydrate polymers 2014, 103, 198-206.<\/p><p><a href=\"https:\/\/science351.pt\/en\/etilcelulose-um-olhar-critico-sobre-as-suas-propriedades\/\">[9]<\/a> Shi, J., et al. Preparation of cellulose nanocrystal from tobacco-stem and its application in ethyl cellulose film as a reinforcing agent. Cellulose 2020, 27, 1393-1406.<\/p><p>\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e878ed4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e878ed4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6614563\" data-id=\"6614563\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7a8f3e2 elementor-widget elementor-widget-text-editor\" data-id=\"7a8f3e2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Este artigo foi realizado no \u00e2mbito do projeto SEA-FILM (COMPETE2030-FEDER-01436100), cofinanciando pelo Portugal 2030.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47bd6b0 elementor-widget elementor-widget-image\" data-id=\"47bd6b0\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science351.pt\/en\/seafilm\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"83\" src=\"https:\/\/science351.pt\/wp-content\/uploads\/COMPETE2030_BarraAssinaturas-01-1024x106.png\" class=\"attachment-large size-large wp-image-3671\" alt=\"\" srcset=\"https:\/\/science351.pt\/wp-content\/uploads\/COMPETE2030_BarraAssinaturas-01-1024x106.png 1024w, https:\/\/science351.pt\/wp-content\/uploads\/COMPETE2030_BarraAssinaturas-01-300x31.png 300w, https:\/\/science351.pt\/wp-content\/uploads\/COMPETE2030_BarraAssinaturas-01-768x80.png 768w, https:\/\/science351.pt\/wp-content\/uploads\/COMPETE2030_BarraAssinaturas-01-1536x159.png 1536w, https:\/\/science351.pt\/wp-content\/uploads\/COMPETE2030_BarraAssinaturas-01-2048x213.png 2048w, https:\/\/science351.pt\/wp-content\/uploads\/COMPETE2030_BarraAssinaturas-01-18x2.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1069076 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1069076\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9691c99\" data-id=\"9691c99\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Etilcelulose A etilcelulose \u00e9 sintetizada por uma rea\u00e7\u00e3o de eterifica\u00e7\u00e3o a partir da celulose, onde ocorre a substitui\u00e7\u00e3o de grupos hidroxilo da celulose por grupos etoxilo (-OC2H5). A sua estrutura qu\u00edmica gen\u00e9rica encontra-se representada na Figura 1. Figura 1. Estrutura qu\u00edmica da etilcelulose,\u00a0onde R = H ou CH2CH3 A etilcleulose \u00e9 biocompat\u00edvel, n\u00e3o i\u00f3nica, possui [&hellip;]<\/p>","protected":false},"author":3,"featured_media":3987,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[7],"tags":[68,19,15,67,65,66],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/posts\/3984"}],"collection":[{"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/comments?post=3984"}],"version-history":[{"count":58,"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/posts\/3984\/revisions"}],"predecessor-version":[{"id":4048,"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/posts\/3984\/revisions\/4048"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/media\/3987"}],"wp:attachment":[{"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/media?parent=3984"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/categories?post=3984"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/science351.pt\/en\/wp-json\/wp\/v2\/tags?post=3984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}