滕新荣,任杰,易辉
TENG Xin-rong; REN Jie; YI Hui(Tongji University Material Science and Engineer Department;

• 1:同济大学材料科学与工程学院
• 2:同济大学材料科学与工程学院
• 3:同济大学材料科学与工程学院 上海200092
• 4:上海200092

摘要(Abstract)：

以L-丙交酯为原料、辛酸亚锡为引发剂,在超临界CO2中运用开环沉淀聚合法成功地制备了聚L-乳酸。用粘度法测定了所得聚合物的相对分子质量,用红外光谱和核磁共振分析了聚合物的结构,同时初步探索了反应温度、时间以及CO2压力对聚合物相对分子质量的影响。
Using Sn(OCT)2 as initiator, PLLA was synthesized successfully by a ring-opening precipitation polymerization in supercritical CO2. The molecular weight of the product obtained was measured by viscosity method and the structure of the PLLA was determined by IR spectroscopy and 13C NMR. The effects of reaction temperature, time and CO2 pressure on the molecular weight of PLLA were also studied.

关键词(KeyWords)： 超临界CO_2;聚乳酸;丙交酯;开环沉淀聚合
supercritical CO_2, poly (lactic acid), lactide, ring-opening precipitation polymerization

Abstract:

Keywords:

基金项目(Foundation): 同济大学工科科技发展基金项目。

作者(Authors): 滕新荣,任杰,易辉
TENG Xin-rong; REN Jie; YI Hui(Tongji University Material Science and Engineer Department;

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