哌啶盐型光敏性聚芳醚砜的制备及其碱性稳定性  

Synthesis and Alkaline Stability of Piperidinium Photosensitive Polysulfone

作　　者：李香丹[1] 何思威 李海[1] 李立忠[1] 申凤善[2] Li Xiangdan;He Siwei;Li Hai;Li Lizhong;Shen Fengshan;Li Hai(College of Chemistry and Materials Science,South.Central University for Nationalities,Wuhan 430074,China;College of Science,Yanbian University,Yanji 133400,China)

机构地区：[1]中南民族大学化学与材料科学学院,武汉430074 [2]延边大学理学院,延吉133002

出　　处：《中南民族大学学报（自然科学版）》2018年第1期6-10,共5页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家自然科学基金资助项目(51243005)

摘　　要：通过Williamson醚化反应,在氯甲基化聚芳醚砜(CMPSF)侧链上部分接入4-羟基查尔酮,再与N-甲基哌啶反应得到了哌啶盐型光敏性聚芳醚砜(CMPSF200-HC60-pip).利用1H NMR,FT-IR,UV-Vis,TGA等测试手段对此聚合物结构及性能进行了表征与测试,探讨了交联对聚合物膜碱性稳定性的影响.结果表明:光交联很大程度上提高了聚合物碱性稳定性.在高温碱性条件下,交联聚合物失重仅11%,而未交联聚合物在浸泡24 h后失重达64%.Photosensitive piperidinium functionalized polysulfones(CMPSF200-HC60-pip)was prepared by the reactionbetween N-piperidinium and CMPSF with4-hydroxy chalcone groups at the side chains,which was synthesized byWilliamson etherification reaction.The structure and properties of CMPSF200-HC60-pip were characterized and evaluatedby using1H NMR,FT-IR,UV-Vis and TGA methods.The effect of crosslinking on the alkaline stability of polymer filmswas also discussed.It was shown that the alkaline stability of the polymer films could be greatly improved by crosslinking.The weight loss of the crosslinked membranes was11%,while the weight loss of the uncrosslinked was up to64%,after being immersed in alkaline solution at high temperature for24h.

关 键 词：光敏性 聚芳醚砜 N.甲基哌啶 碱性稳定性 

分 类 号：O630[理学—高分子化学]