芳香环状聚酯二聚体的开环共聚合研究  

Ring- opening Copolymerization of Aromatic Macrocyclic Ester Dimers

作　　者：刘爽[1] 郑华明[1] 郭俊芳[1] 郭庆中[1] 

机构地区：[1]武汉工程大学材料科学与工程学院,湖北武汉430073

出　　处：《化工时刊》2015年第5期3-6,共4页Chemical Industry Times

基　　金：湖北省自然科学基金资助项目(2010CDB11104);武汉工程大学博士启动基金(11105032)

摘　　要：两种芳香环状聚酯二聚体CPA和6FCPA,在阴离子引发剂苯甲酸钠的存在下,进行熔融开环共聚合,制备线性共聚酯。利用NMR、DSC、TGA对开环聚合产物进行了表征,结果表明,共聚产物为无规共聚物,共聚物和均聚物的Tg之间的关系符合FOX方程。开环聚合产物的5%热失重温度均高于370℃,表明产物均具有良好的热稳定性。Two kinds of aromatic macrocyclic ester dimers prepared from o - phthaloyl dichloride and 4,4＇ - （hexafluoroisopropylidene） diphenol or BPA could undergo anionic ring opening eopolymerization in the melt using sodium benzoate as the initiator, producing linear, high molecular weight polyesters. The Tgs of homopolymers and copolymer were at accord with the FOX equation. The results of DSC and NMR analysis showed that the copolymer was random. The 5% weight loss temperatures of homopolymers ted that the products obtained by ROP were thermally stabl and copolymer were all higher than 370 ℃, which indicae.

关 键 词：芳香环状齐聚物 开环聚合 共聚物 

分 类 号：TQ316.3[化学工程—高聚物工业]