摘要
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.
出处
《合成纤维》
CAS
北大核心
2005年第1期3-5,共3页
Synthetic Fiber in China
基金
同济大学工科科技发展基金项目。
