PPQ-b-PEG刚柔嵌段共聚物的合成及热稳定性  

Synthesis and Thermostabilities of Rod-coil Block Copolymers of Poly(phenylquinoline-b-glycol)

作　　者：龙永福[1] 谢凯[1] 许静[1] 张学骜[1] 肖加余[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《国防科技大学学报》2005年第1期1-4,共4页Journal of National University of Defense Technology

基　　金：国家973基金资助项目(5130702002)

摘　　要：以聚乙二醇单甲醚、丁二酸酐、4-氨基苯乙酮、5-乙酰基-2-氨基二苯甲酮为原料合成了以聚苯基喹啉(PPQ)为硬段、聚乙二醇(PEG)为软段的"刚棒—线团"两嵌段共聚物PPQ b PEG,通过IR、1HNMR对其结构进行了表征,并对PPQ b PEG嵌段共聚物的热稳定性进行研究,结果表明:PPQ b PEG(d)的热稳定性高,PPQ b PEG起始的分解温度为250℃,在250～400℃失重很少,其失重率小于5%,在400～600℃才迅速失重,到620℃时彻底分解。Rod-coil diblock copolymers of PPQ-b-PEG containing poly(phenylquinoline) (PPQ) as the rod block and the poly(eth-ylene glycol) (PEG) as the coil block were designed and synthesized from Methyl-PEG(Mw : 2000), butanedioic anydride 4-Aminoaceto-phenone, 5-aceryl-2-aminobenzophenone. The structures of PPQ-b-PEG are characterized by IR, 1HNMR. And thermostabilities are studied. The results show that the first decomposition temperature of PPQ-b-PEG is 250°C. The weight of PPQ-b-PEG is reduced by 5% at 250-400°C. It is reduced rapidly at 400-600°C.

关 键 词：聚苯基喹林 聚乙二醇 刚柔嵌段共聚物 合成 表征 

分 类 号：O631.5[理学—高分子化学]