中文摘要：

合成了含有苯乙炔基的二胺单体3,5-二氨基-4＇-苯乙炔苯甲酮（DPEB）,并与3,3＇,4,4＇-联苯四酸二酐（s-BPDA）和1,4-双（4＇-氨基苯氧基）-2-（苯基）苯（p-TPEQ）进行了缩聚反应,以4-苯乙炔苯酐作为封端剂,合成了交联侧基苯乙炔封端酰亚胺预聚体（n=4）.DSC测试结果表明,引入交联侧基后预聚体依然保持着较宽的加工窗口.利用所合成的预聚体在370℃热压1 h制备了热固性薄膜.DMA测试结果表明,引入交联侧基的预聚体树脂具有更高的玻璃化转变温度,并且其储存模量在玻璃化转变后有很好的保持.

英文摘要：

A diamine monomer 3,5-diamino-4＇-phenylethynylbenzophenone （DPEB） was synthesized and phenylethynyl-terminated imide oligomers having pendent phenylethynyl group （rt = 4） was prepared by the reaction of 3,3＇, 4,4＇-biphenylenetetracarboxylic dianhydride （ s-BPDA ）, DPEB and 2,5-bis （ 4-aminophenoxy）-biphenyl（p-TPEQ）, and end-capped with 4-phenylethynylphthalic anhydride （PEPA）. The imide oli gomer had low Tg and pro, eided wide processing window. The cured films were prepared by molding the oligomer powder at 370 °C for 1 h under pressure. DMA results show tile introduction of pendent phenylethynyl group increases Ts of the cured film and the retention of storage modulus beyond Ts is promoted.