{"id":291,"date":"2013-12-06T11:56:17","date_gmt":"2013-12-06T10:56:17","guid":{"rendered":"https:\/\/blog.rwth-aachen.de\/bauchemie\/?p=291"},"modified":"2025-01-06T13:46:19","modified_gmt":"2025-01-06T12:46:19","slug":"neue-veroeffentlichungpolyvinyl-acetat-plastifiziert-sich-selbst","status":"publish","type":"post","link":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/2013\/12\/06\/neue-veroeffentlichungpolyvinyl-acetat-plastifiziert-sich-selbst\/","title":{"rendered":"New publication<br>Poly(vinyl acetate) plasticises itself"},"content":{"rendered":"<div class=\"twoclick_social_bookmarks_post_291 social_share_privacy clearfix 1.6.4 locale-en_US sprite-en_US\"><\/div><div class=\"twoclick-js\"><script type=\"text\/javascript\">\/* <![CDATA[ *\/\njQuery(document).ready(function($){if($('.twoclick_social_bookmarks_post_291')){$('.twoclick_social_bookmarks_post_291').socialSharePrivacy({\"txt_help\":\"Wenn Sie diese Felder durch einen Klick aktivieren, werden Informationen an Facebook, Twitter, Flattr, Xing, t3n, LinkedIn, Pinterest oder Google eventuell ins Ausland \\u00fcbertragen und unter Umst\\u00e4nden auch dort gespeichert. N\\u00e4heres erfahren Sie durch einen Klick auf das <em>i<\\\/em>.\",\"settings_perma\":\"Dauerhaft aktivieren und Daten\\u00fcber-tragung zustimmen:\",\"info_link\":\"http:\\\/\\\/www.heise.de\\\/ct\\\/artikel\\\/2-Klicks-fuer-mehr-Datenschutz-1333879.html\",\"uri\":\"https:\\\/\\\/blog.rwth-aachen.de\\\/bauchemie\\\/en\\\/2013\\\/12\\\/06\\\/neue-veroeffentlichungpolyvinyl-acetat-plastifiziert-sich-selbst\\\/\",\"post_id\":291,\"post_title_referrer_track\":\"New+publicationPoly%28vinyl+acetate%29+plasticises+itself\",\"display_infobox\":\"on\"});}});\n\/* ]]> *\/<\/script><\/div><p><strong>No additional plasticiser required.<\/strong> Poly(vinyl acetate), PVAc, with a degree of polymerisation Xn\u224810 was produced by free radical chain transfer polymerisation with carbon tetrachloride and used as an oligomeric plasticiser for commercial PVAc. After H\/Cl exchange at the chain ends, the product exhibits high thermal stability and excellent melt compounding properties. Blends of oligomeric and commercial PVAc show simple glass transition temperatures, which decrease with higher oligomer content, and exhibit small negative deviations from Fox&#8217;s linear additivity rule. This suggests that plasticisation and miscibility are mainly due to entropic effects. Injection moulded thick specimens show ductile behaviour at oligomer contents &gt;10 wt%, while sheets with a thickness of 0.2-0.5 mm appear flexible already at 7.5 wt%. The oxygen permeability coefficients are an order of magnitude lower than those of low-density polyethylene. Due to the sum of their properties, the plasticised sheets represent a promising alternative for the production of barrier materials.<\/p>\n<p>D. Heinze, T. Mang, K. Peter, M. M\u00f6ller, O. Weichold<br \/>\n<em>Synthesis of Low Molecular Weight Poly(vinyl acetate) and Its Application as Plasticizer<\/em><br \/>\n<em>J. Appl. Polym. Sci.<\/em> <strong>2014,<\/strong> 40226. <a href=\"https:\/\/doi.org\/10.1002\/APP.40226\">https:\/\/doi.org\/10.1002\/APP.40226<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>No additional plasticiser required. Poly(vinyl acetate), PVAc, with a degree of polymerisation Xn\u224810 was produced by free radical chain transfer polymerisation with carbon tetrachloride and used as an oligomeric plasticiser [&hellip;]<\/p>\n","protected":false},"author":6353,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"c2c_always_allow_admin_comments":false,"footnotes":""},"categories":[20,5],"tags":[],"class_list":["post-291","post","type-post","status-publish","format-standard","hentry","category-polymere","category-publication"],"_links":{"self":[{"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/posts\/291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/users\/6353"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/comments?post=291"}],"version-history":[{"count":2,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/posts\/291\/revisions"}],"predecessor-version":[{"id":385,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/posts\/291\/revisions\/385"}],"wp:attachment":[{"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/media?parent=291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/categories?post=291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/tags?post=291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}