摘要
介绍了丙交酯与环氧乙烷开环共聚合、丙交酯与聚乙二醇(PEG)开环共聚台。以及在其基础上的扩链3种主要的聚乙二醇改性聚乳酸(PEIA)合成方法,并概括了各种PELA合成材料的性能与应用。为了得到功能化和亲水性理想的聚乳酸类生物降解高分子,聚乳酸树脂的PEG改性合成工作越来越引人注目。以PEG、乳酸等为原料,通过简单易行的直接聚合法合成PELA类材料,降低PELA类材料的成本,是未来研究的重要方向。
This paper introduced the ring-opening copolymerization of lactide with ethyiene oxide and lactide with polyethylene glycol (PEG) as well as the synthetic method of poly (ethyiene glycol) -poly (lactic acid) copolymers (PELA) involving chain extension on the basis of the copolymerization. The properties and applications of various kinds of PELA synthetic materials were outlined. In order to acquire perfect functionalized or hydrophilic polylactic acid biodegradable polymer, more and more efforts have been focused on the synthetic process of polylactic acid resin modified with PEG. The direct polymerization technology for synthesizing PELA materials with taking lactic acid and PEG as reactants can significantly reduce the productive cost and furthermore, represent an important direction of the future researches on PELA.
出处
《合成树脂及塑料》
CAS
2003年第6期58-61,共4页
China Synthetic Resin and Plastics
基金
广东省自然科学基金资助项目(020885)
关键词
聚乙二醇
改性
聚乳酸
合成
生物降解高分子
开环聚合
直接聚合
polylactic acid biodegradable polymer
polyethylene glycol
modification
synthesis
ring-opening polymerization
direct polymerization
