高等学校化学学报2012，Vol.33Issue(10)：2135-2137,3.DOI:10.7503/cjcu20120642
“一锅法”均相合成热塑性纤维素丙酸酯接枝聚乳酸共聚物
Thermoplastic Cellulose Propionate-graft-Poly (L-lactide) Copolymers Homogeneously Synthesized by “One Pot” Process from Native Cellulose
摘要
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.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Key words
Cellulose propionate/ Poly (L-lactide)/ Graft copolymer/ Thermoplastic/ "One pot" homogeneous synthesis分类
化学化工引用本文复制引用
栾贻浩,武进,詹茂盛,张金明,张军,何嘉松..“一锅法”均相合成热塑性纤维素丙酸酯接枝聚乳酸共聚物[J].高等学校化学学报,2012,33(10):2135-2137,3.基金项目
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. （批准号:50973124,21174151）
