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

作　　者：Ruijia Hu Ming Li Tao Shen Xin Wang Zhuohua Sun Xinning Bao Kequan Chen Kai Guo Lei Ji Hanjie Ying Pingkai Ouyang Chenjie 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》2024年第2期390-402,共13页绿色能源与环境（英文版）

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 

分 类 号：X705[环境科学与工程—环境工程]