东华大学学报（英文版）2005，Vol.22Issue(1)：1-7,7.
Study of Synthesis of Copoly (lactic acid/glycolic acid) by Direct Melt Polycondensation
Study of Synthesis of Copoly (lactic acid/glycolic acid) by Direct Melt Polycondensation
LAN Ping 1GAO Qin-wei 1SHAO Hui-li 1HU Xue-chao1
作者信息
- 1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 200051
- 折叠
摘要
Abstract
A two steps direct copolymerisation process was developed. The first step is to produce oligomer and then the oligomer of lactic acid/glycolic acid (90/10) is polymerized with binary catalyst tin chloride dihydrate/ptoluenesulfonic acid. In this way, the direct synthesis of copoly (lactic acid/glycolic acid) without any organic solvent was investigated. The properties and structures of products were characterized by nuclear magnetic resonance (NMR), differential scanning calorimetry (DSC), X-ray diffraction and so on. The results show that comparatively high molecular weight copolymer of lactic acid and glycolic acid can be prepared by direct processing under appropriate technological conditions.关键词
lactic acid/glycolic acid/melt polymerization/direct synthesisKey words
lactic acid/glycolic acid/melt polymerization/direct synthesis引用本文复制引用
LAN Ping,GAO Qin-wei,SHAO Hui-li,HU Xue-chao..Study of Synthesis of Copoly (lactic acid/glycolic acid) by Direct Melt Polycondensation[J].东华大学学报（英文版）,2005,22(1):1-7,7.
