{"id":80695,"date":"2020-10-30T07:20:39","date_gmt":"2020-10-30T06:20:39","guid":{"rendered":"https:\/\/renewable-carbon.eu\/news\/?p=80695"},"modified":"2020-10-27T13:12:44","modified_gmt":"2020-10-27T12:12:44","slug":"the-highest-heat-resistant-plastic-ever-is-developed-from-biomass","status":"publish","type":"post","link":"https:\/\/renewable-carbon.eu\/news\/the-highest-heat-resistant-plastic-ever-is-developed-from-biomass\/","title":{"rendered":"The highest heat-resistant plastic ever is developed from biomass"},"content":{"rendered":"

Summary<\/h3>\n

The use of biomass-derived plastics is one of the prime concerns to establish a sustainable society, which is incorporated as one of the Sustainable Development Goals. However, the use of most of the biomass-derived plastics is limited due to their low heat resistance. Collaborative research between JAIST and U-Tokyo has successfully developed the white-biotechnological conversion from cellulosic biomass into the aromatic polymers having the highest thermodegradation of all the plastics reported ever.<\/strong><\/p>\n

Developing novel energy-efficient materials using biomass is frontiers to establish a sustainable environment. Plastics lightweight in nature produced from renewable biomass are prerequisites for developing a circular economy. However, currently available bioplastics are mostly aliphatic (e.g.; PLA, PHA, PA11, etc.) and thus consists of poor thermostability, which restricts their further applications. Aromatic backbone-based polymers are widely considered for their high heat-resistance (e.g; Zylon\u00ae<\/sup>, Celazole\u00ae<\/sup>, Kapton\u00ae<\/sup>, etc.) but developing aromatic heterocyclic monomers from biomass are rare due to difficulty in controlling their structure.<\/p>\n

Two specific aromatic molecules, 3-amino-4-hydroxybenzoic acid (AHBA) and 4-aminobenzoic acid (ABA) were produced from kraft pulp, an inedible cellulosic feedstock by Prof. Ohnishi and his research team in U-Tokyo. Recombinant microorganisms enhanced the productivity of the aromatic monomers selectively and inhibited the formation of the side products. Prof. Kaneko<\/a> and his research team in JAIST have chemically converted AHBA into 3,4-diaminobenzoic acid (DABA); which was subsequently polymerized into poly(2, 5-benzimidazole) (ABPBI) via polycondensation and processed into thermoresistant film. Also, incorporating a very small amount of ABA with DABA dramatically increases the heat-resistance of the resulting copolymer and processed film attributes to the highest thermostable plastic on record (Figure 1).<\/p>\n

Density functional theory (DFT) calculations confirmed the small ABA incorporation strengthened the interchain hydrogen bonding between imidazoles although \u03c0-conjugated benzene\/heterocycle repeats have been considered as the most ideal thermoresistant plastics for around 40 years.<\/p>\n

Organic plastic superior in thermostability (over 740\u00b0C), was developed from inedible biomass feedstocks without using heavy inorganic fillers and thus lightweight in nature. Such an innovative molecular design of ultra-high thermoresistance polymers by controlling \u03c0-conjugation can contribute to establishing a sustainable carbon negative society, and energy conservation by weight saving.<\/p>\n

\"pr20201014-1e\"
Figure 1. Development strategy for cellulose-derived PBI and PBI\/PA film having ultra-high thermoresistance and frame retardance.<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

Summary The use of biomass-derived plastics is one of the prime concerns to establish a sustainable society, which is incorporated as one of the Sustainable Development Goals. However, the use of most of the biomass-derived plastics is limited due to their low heat resistance. Collaborative research between JAIST and U-Tokyo has successfully developed the white-biotechnological […]<\/p>\n","protected":false},"author":59,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","nova_meta_subtitle":"","footnotes":""},"categories":[5572],"tags":[5838,5842,5847,5796],"supplier":[13270],"class_list":["post-80695","post","type-post","status-publish","format-standard","hentry","category-bio-based","tag-bioeconomy","tag-biomass","tag-bioplastics","tag-biotechnology","supplier-japan-advanced-institute-of-science-and-technology-jaist"],"_links":{"self":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/80695","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/users\/59"}],"replies":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/comments?post=80695"}],"version-history":[{"count":0,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/80695\/revisions"}],"wp:attachment":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media?parent=80695"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/categories?post=80695"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/tags?post=80695"},{"taxonomy":"supplier","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/supplier?post=80695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}