含酰亚胺官能团二羧酸单体的合成  

Synthesis of dicaboxylic acid monomers containing imido group

作　　者：蔡克林[1] 张再兴[1] 杨潇[1] 徐建军[1] 叶光斗[1] 

机构地区：[1]四川大学高分子科学与工程学院高分子材料工程国家重点实验室,四川成都610065

出　　处：《化学试剂》2010年第8期725-726,758,共3页Chemical Reagents

基　　金：国家自然科学基金资助项目(50873061)

摘　　要：用均苯四甲酸二酐(PMDA)和3,3′,4,4′-联苯四甲酸二酐(BPDA)分别与对氨基苯甲酸(PABA)和6-氨基己酸反应,采用两阶段式控温法,以甲苯作为脱水剂,进行共沸脱水,制得一系列酰亚胺二酸(IDA)单体。并用制得的N,N′-(4,4′-羧基苯基)均苯四甲酰亚胺单体与硫酸肼反应,制得聚酰亚胺噁二唑。用FT-IR,1HNMR对单体及聚合物进行表征,确认了其结构。Upon reactions of pyromellitic dianhydride（PMDA）and 3,3＇,4,4＇-biphenyltetracarboxylic dianhydride（BPDA）with p-aminobenzoic acid（PABA）and 6-aminohexanoic acid,respectively,a series of imido-diacid（IDA）monomers were prepared by two-stage temperature-controlled method,which involved ring-opening to form amic acid and subsequent azeotropic dehydration using toluene as the dehydrating agent.And poly（imide-oxadiazole）was prepared through the reaction of resulted thereby N,N＇-（4,4＇-carboxyphenyl）-pyromellitic imide upon hydrazine sulfate.The structure of IDA monomers and poly（imide-oxadiazole）were confirmed by IR,and 1HNMR.

关 键 词：酰亚胺二酸 共沸脱水 聚酰亚胺噁二唑 

分 类 号：TQ342.73[化学工程—化纤工业]