新型双戊烯单酐封端的聚酰亚胺低聚物的合成及其热性能  

Synthesis and Thermal Properties of Novel Dipentene Anhydride-endcapped Polyimides Oligomers

作　　者：丁永红[1] 李亮荣[1] 欧阳红霞[1] 孙戊辰[1] 刘峰[2] 

机构地区：[1]南昌大学抚州医学分院,江西抚州344000 [2]南昌大学化学系,江西南昌330031

出　　处：《合成化学》2014年第4期532-534,共3页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学基金资助项目(50803026);江西省科技支撑项目(2009BGA00300)

摘　　要：以联苯四酸二酐为单体,双戊烯单酐为封端剂,与4,4'-二氨基二苯醚经聚合反应合成了两个新型的聚酰亚胺低聚物2(链节数为1)和3(链节数为2),其结构经1H NMR和IR表征。热性能研究表明,2和3失重5%的温度分别为218℃和198℃;失重50%的温度分别为664℃和639℃。Two novel dipentene anhydride-endcapped polyimides oligomers[ 2（ the chain numbers was 1 ） and 3 （ the chain numbers was 2） ] were synthesized by polymerization using biphenyltetracarboxylic dianhydride as the monomers and dipentene anhydride as the endcapping agent. The structures were characterized by 1H NMR and IR. Thermal properties of 2 and 3 were investigated by TGADTG. The results showed that 5% and 50% heat weightlessness temperature of 2 and 3 were 218 ℃ and 198 ℃, 664 ℃ and 639 ℃, respectively.

关 键 词：封端剂 双戊烯单酐 聚酰亚胺低聚物 合成 热性能 

分 类 号：O63[理学—高分子化学] O633.5[理学—化学]