{"id":16703,"date":"2023-11-05T03:54:22","date_gmt":"2023-11-04T22:24:22","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=16703"},"modified":"2025-04-04T22:42:40","modified_gmt":"2025-04-04T17:12:40","slug":"vitrimer","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/vitrimer\/","title":{"rendered":"What is Vitrimer?"},"content":{"rendered":"<h2>About Vitrimer<\/h2>\n<ul>\n<li>These represent a\u00a0relatively recent category of plastics known for their impressive strength at low temperatures.<\/li>\n<li>They also possess the unique ability\u00a0to be reshaped numerous times when exposed to higher temperatures.\u00a0<\/li>\n<li>It is also partially biodegradable.<\/li>\n<li>Nonetheless, they do have a notable drawback &#8211;\u00a0extreme brittleness, as they cannot be stretched far before breaking.<\/li>\n<li>To address this issue, researchers introduced a molecule called polyrotaxane into the plastic synthesis process, resulting in a novel plastic variant they&#8217;ve\u00a0dubbed VPR, an abbreviation for &#8220;vitrimer incorporated with polyrotaxane.&#8221;\u00a0<\/li>\n<li>VPR is over five times as resistant to breaking as a typical epoxy resin vitrimer.<\/li>\n<li>At a high temperature of around 150 degrees Celsius, VPR start to recombine, allowing the material to take on different forms.<\/li>\n<li>It also repairs itself 15 times as fast, can recover its original memorised shape twice as fast and can be chemically recycled 10 times as fast as the typical vitrimer.<\/li>\n<li>It even\u00a0biodegrades safely in a marine environment, which is new for this material.<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1) What is polyrotaxane?<\/h3>\n<p>A polyrotaxane is a type of mechanically interlocked molecule or supramolecular structure. It consists of one or more linear polymer chains threaded through a ring-shaped molecule. This arrangement resembles a threaded nut on a bolt, where the linear polymer chain represents the bolt, and the ring-shaped molecule represents the nut.<\/p>\n<p><strong>Source:<\/strong> <a href=\"https:\/\/www.wionews.com\/science\/japan-scientists-develop-self-healing-stronger-and-partially-biodegradable-plastic-654986\" target=\"_blank\" rel=\"nofollow noopener\"><u>Japan: Scientists develop self-healing, stronger and partially biodegradable plastic<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vitrimer represent a relatively recent category of plastics known for their impressive strength at low temperatures.<\/p>\n","protected":false},"author":5,"featured_media":16704,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-16703","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/16703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=16703"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/16703\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/16704"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=16703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=16703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=16703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}