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

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

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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 l,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.

LignocelluloseLigninReductive catalytic fractionationBio-based nylon

Ruijia Hu、Ming Li、Tao Shen、Xin Wang、Zhuohua Sun、Xinning Bao、Kequan Chen、Kai Guo、Lei Ji、Hanjie Ying、Pingkai Ouyang、Chenjie Zhu

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College of Biotechnology and Pharmaceutical Engineering,Nanjing Tech University,Nanjing,China

National Engineering Research Center for Biotechnology,Nanjing Tech University Nanjing,China

Beijing Key Laboratory of Lignocellulosic Chemistry,Beijing Forestry University,Beijing,China

National Key Research and Development Program of ChinaProgram of National Natural Science Foundation of ChinaProgram of National Natural Science Foundation of ChinaSix talent peaks project in Jiangsu ProvinceProgram of National Natural Science Foundation of ChinaJiangsu Province Natural Science Foundation for Young Scholars

2023YFA09136042217817022378195SWYY-04522208155BK20210552

2024

10.1016/j.gee.2022.11.004

绿色能源与环境(英文)

绿色能源与环境(英文)

CSTPCD
ISSN：
年,卷(期)：2024.9(2)
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