Experiment Research on Influence Factors of Ring-opening Polymerization in Making PDLLA

摘要：

The paper research on the factors of the lactide polymerization,which primarily were ontology purity,dosage of initiator,polymerization temperature,time and vacuum degree,etc. According to the molecular weight measuring in different conditions of synthesis PDLLA,the results shows that,through the control of polymerization conditions higher molecular weight of PDLLA can obtain,main parameters as the quality ratio of initiator and monomers is about 0.03%,the polymerization temperature is 140℃,time duration is 48h and vacuum is 0.05 mmHg.

作者: Song Liu Lina Sun

作者单位: North China Institute of Science and Technology,Yanjiao,Sanhe,Hebei,China

会议类型: 国际会议

会议名称: 2011 International Conference on Environmental Biotechnology and Materials Engineering(2011年环境生物技术与材料工程国际会议)

会议地点: 哈尔滨

会议语种:英文

页码: 1879-1882

在线出版日期: 2011-03-26（万方平台首次上网日期，不代表论文的发表时间）