Poly(L-lactide)-Poly(ethylene glycol) Multiblock Copolymers: Synthesis and Properties  

作　　者：Wei Jun LUO Su Ming LI Jian Zhong BEI Shen Guo WANG 

机构地区：[1]Center fpr Molecular Science,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080

出　　处：《Chinese Chemical Letters》2002年第1期33-36,共4页中国化学快报(英文版)

基　　金：The authors are Indebted to the National Basic Science Rescarch and Development Grants(973)(No.1999054306).

摘　　要：Poly (L-lactide)-poly(ethylene glycol) multiblock copolymers with predetermined block lengths were synthesized by polycondensation of PLA diols and PEG diacids. These copolymers presented special properties, such as better miscibility between the two components, low crystallinity and better hydrophilicity, which can be modulated by adjusting the block lengths of the two components.Poly (L-lactide)-poly(ethylene glycol) multiblock copolymers with predetermined block lengths were synthesized by polycondensation of PLA diols and PEG diacids. These copolymers presented special properties, such as better miscibility between the two components, low crystallinity and better hydrophilicity, which can be modulated by adjusting the block lengths of the two components.

关 键 词：Poly (L-lactide) poly(ethylene glycol) BIODEGRADABILITY multiblock copolymer MISCIBILITY crystallinity hydrophilicity. 

分 类 号：O632[理学—高分子化学] O631.3[理学—化学]