A sustainable process to 100%bio-based nylons integrated chemical and biological conversion of lignocellulose

查看全文 作　　者：Ruijia [1,2]Hu;Ming [1,2]Li;Tao [1,2]Shen;Xin [1,2]Wang;Zhuohua [3]Sun;Xinning [1,2]Bao;Kequan [1,2]Chen;Kai [1]Guo;Lei [1]Ji;Hanjie [1,2]Ying;Pingkai [1,2]Ouyang;Chenjie [1,2]Zhu

机构地区：[1]College of Biotechnology and Pharmaceutical Engineering,Nanjing Tech University,Nanjing,China;[2]National Engineering Research Center for Biotechnology,Nanjing Tech University,Nanjing,China;[3]Beijing Key Laboratory of Lignocellulosic Chemistry,Beijing Forestry University,Beijing,China

出　　处：《Green Energy & Environment》索引2024年第9卷第2期,共13页

基　　金：support by National Key Research and Development Program of China(Grant No.:2023YFA0913604);Program of National Natural Science Foundation of China(Grant No.:22178170,22378195);Six talent peaks project in Jiangsu Province(SWYY-045);Program of National Natural Science Foundation of China(Grant No.22208155);Jiangsu Province Natural Science Foundation for Young Scholars(Grant No.BK20210552). 摘　　要：Considerable progress has been made in recent years to the development of sustainable polymers from bio-based feedstocks.In this study,100%bio-based nylons were prepared via an integrated chemical and biological process from lignocellulose.These novel nylons were obtained by the melt polymerization of 3-propyladipic acid derived from lignin and 1,5-pentenediamine/1,4-butanediamine derived from carbohydrate sugar.Central to the concept is a three-step noble metal free catalytic chemical funnelling sequence(Raney Ni mediated reductive catalytic fractionation-reductive funnelling-oxidative funnelling),which allowed for obtaining a single component 3-propyladipic acid from lignin with high efficiency.The structural and thermodynamic properties of the obtained nylons have been systematically investigated,and thus obtained transparent bio-based nylons exhibited higher Mw(>32,000)and excellent thermal stability(Td5%>265℃).Considering their moderate Tg and good melt strength,these transparent bio-based nylons could serve as promising functional additives or temperature-responsive materials. 关键词：LIGNOCELLULOSE LIGNIN Reductive catalytic fractionation Bio-based nylon

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A sustainable process to 100%bio-based nylons integrated chemical and biological conversion of lignocellulose

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