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.
出处
《化学试剂》
CAS
CSCD
北大核心
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)
关键词
酰亚胺二酸
共沸脱水
聚酰亚胺噁二唑
imido-diacid
azeotropic dehydration
poly（imide-oxadiazole）
