【摘要】 本文利用 4-溴代苯酐和苯乙炔在催化剂作用下合成了 4-苯乙炔苯酐 (4- PEPA) ,用 NMR、FT- IR和元素分析对其进行了表征 ,并以其作为封端剂合成了聚酰亚胺齐聚物 ,同时对其性能作了一些探讨。更多还原

【Abstract】 Phenylethynyl) phthalic anhydride(4- PEPA) was synthesized by substitution reaction between4- bromo phthalic anhydride(4- BPA) and phenylacetylene under the catalysis of palladium system.A polyimide oligomer end- capped with4- PEPA (PEPA- PI) was also synthesized by condensating 3,4’- diaminodiphenyl ether(3,4’- DADPE) ,1,3- bis (3- aminophenoxy) benzene (BAPB) with 3,3’,4,4’- benzophenone tetracarboxylic dianhydride (BTDA ) ,4- PEPA. Both 4- PEPA and PEPA- PI were characterized in this paper.更多还原