Poly(L-lactide)/starch blends compatibilized with poly(L-lactide)-g-starch copolymer

被引：106
作者：
Chen, Li
Qiu, Xueyu
Xie, Zhigang
Hong, Zhongkui
Sun, Jingru
Chen, Xuesi
Jing, Xiabin
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Grad Sch, Changchun 130022, Jilin, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
[3] NE Normal Univ, Dept Chem, Changchun 130021, Peoples R China
来源：
CARBOHYDRATE POLYMERS | 2006年 / 65卷 / 01期
基金：
中国国家自然科学基金;
关键词：
PLLA-g-starch; PLLA/starch; compatibilizer; blend; interfacial adhesion;
D O I：
10.1016/j.carbpol.2005.12.029
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The poly(L-lactide) (PLLA)/starch blends were prepared by the PLLA grafting starch (PLLA-g-St) copolymers as a compatibilizer, and their thermal, mechanical and morphological characterizations were performed to show the better performance of these blends compared to the virgin PLLA/starch blend without the compatibilizer, including PLLA crystallinity, interfacial adhesion between the PLLA matrix and starch dispersive phases, mechanical test, medium resistance, and contact angle. The 50/50 composite of PLLA/starch compatibilized by 10% PLLA-g-St gave a tensile strength of 24.7 MPa and an elongation at break of 8.7%, respectively, vs. 11.3 MPa and 1.5%, respectively, for the simple 50/50 blend of PLLA/starch. (c) 2006 Elsevier Ltd. All rights reserved.
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收藏
页码：75 / 80
页数：6
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