新型含氮杂环可溶性聚芳酰胺的合成及表征

Synthesis and characterization of novel soluble polyamides containing nitrogen heterocyclic ring

利用 5 氨基 1H 1,2 ,4 三氮唑 - 3-羧酸与戊二醛为原料 ,合成了一种带有二羧酸基团的西 佛碱化合物。以该二元羧酸西佛碱分别与 4 ,4’ -二氨基二苯甲烷、4 ,4’ -二氨基二苯醚、4 ,4’ -二氨基二苯亚砜进行缩聚反应 ,制备了三种新型的聚芳酰胺 ,所得聚芳酰胺可溶于强极性溶剂 ,并具有一定耐热性能。

A new Schiffs base containing dibasic carboxylic group was synthesized with 5-amino -1H-1,2,4-triazole-3-carboxylic acid and pentanedialdehyde as raw materials.Then,the Schiffs base was condensation polymerization with 4,4'-diaminodiphenylmethane,4,4'-diamino-diphenylether or 4,4'-diaminodiphenyl sulphone respectively to prepare three novel polyaramides.Such polyamides are soluble in strongly polar solvents and have considerable heat resistance.