高等学校化学学报 ›› 2012, Vol. 33 ›› Issue (10): 2135-2137.doi: 10.7503/cjcu20120642

• 研究快报 • 上一篇    下一篇

“一锅法”均相合成热塑性纤维素丙酸酯接枝聚乳酸共聚物

栾贻浩1,2, 武进2, 詹茂盛1, 张金明2, 张军2, 何嘉松2   

  1. 1. 北京航空航天大学材料科学与工程学院, 北京 100191;
    2. 中国科学院化学研究所, 中科院工程塑料重点实验室, 北京 100190
  • 收稿日期:2012-07-06 出版日期:2012-10-10 发布日期:2012-09-12
  • 通讯作者: 詹茂盛, 男, 博士, 教授, 主要从事高分子复合材料方面的研究. E-mail: zhanms@buaa.edu.cn; 张 军, 男, 博士, 研究员, 主要从事纤维素材料的绿色加工与功能化高分子复合材料研究. E-mail: jzhang@iccas.ac.cn E-mail:zhanms@buaa.edu.cn;jzhang@iccas.ac.cn
  • 基金资助:

    国家自然科学基金(批准号: 50973124, 21174151)和中国科学院方向性项目(批准号: KJCX2-YW-H30-03, KJCX2-YW-H-19)资助.

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

LUAN Yi-Hao1,2, WU Jin2, ZHAN Mao-Sheng1, ZHANG Jin-Ming2, ZHANG Jun2, HE Jia-Song2   

  1. 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

摘要:

在纤维素/离子液体溶液中, 采用DMAP作为催化剂, 催化纤维素的丙酰化反应和L-丙交酯在纤维素上的开环接枝共聚反应, 通过“一锅法”合成出纤维素丙酸酯接枝聚乳酸(CP-g-PLA)共聚物.

关键词: 纤维素丙酸酯, 聚乳酸, 接枝共聚物, 热塑性, 一锅法均相合成

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

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