Thermoplastic Cellulose Propionate-graft-Poly(L-lactide) Copolymers Homogeneously Synthesized by "One Pot" Process from Native Cellulose

doi:10.7503/cjcu20120642

Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (10): 2135.doi: 10.7503/cjcu20120642

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Thermoplastic Cellulose Propionate-graft-Poly(L-lactide) Copolymers Homogeneously Synthesized by "One Pot" Process from Native Cellulose

LUAN Yi-Hao^1,2, WU Jin², ZHAN Mao-Sheng¹, ZHANG Jin-Ming², ZHANG Jun², HE Jia-Song²

1. School of Materials Science and Engineering, Beihang University, Beijing 100191, China;
2. Beijing National Laboratory for Molecular Sciences(BNLMS), Key Laboratory of Engineering Plastics(KLEP), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

Received:2012-07-06 Online:2012-10-10 Published:2012-09-12
Contact: ZHANG Jun, ZhangJun E-mail:zhanms@buaa.edu.cn;jzhang@iccas.ac.cn

Abstract

Abstract:

Using native cellulose as the starting materials and 4-dimethylaminopyridine(DMAP) as the catalyst, a series of novel cellulose propionate-graft-poly(L-lactide) copolymers(CP-g-PLAs) was synthesized in an ionic liquid AmimCl via "one pot" process. DMAP can effectively catalyze the propionylation of cellulose with propionic anhydride and the subsequent ring-opening grafting copolymerization of L-lactide (LA) from residual hydroxyl groups in cellulose. The structure of CP-g-PLA copolymers could be well controlled by changing the molar ratio of propionate hydride/cellulose and LA/cellulose. When PLA content above 27.46%, the copolymers exhibited thermoplastic behavior and could be shaped by conventional melt processing methods, such as injection molding. 

Key words: Cellulose propionate, Poly(L-lactide), Graft copolymer, Thermoplastic, "One pot", homoge-neous synthesis

CLC Number:

O631

TrendMD:

LUAN Yi-Hao, WU Jin, ZHAN Mao-Sheng, ZHANG Jin-Ming, ZHANG Jun, HE Jia-Song. Thermoplastic Cellulose Propionate-graft-Poly(L-lactide) Copolymers Homogeneously Synthesized by "One Pot" Process from Native Cellulose[J]. Chem. J. Chinese Universities, 2012, 33(10): 2135.

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Thermoplastic Cellulose Propionate-graft-Poly(L-lactide) Copolymers Homogeneously Synthesized by "One Pot" Process from Native Cellulose

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