可溶性氯代杂环聚芳酰胺的合成与性能

Synthesis and Properties of Soluble Chloro-Substituted Poly(phthalazinone amide)s

合成了一种新的氯代芳香二胺 2 -(4 -氨基苯基 ) -4-[(3 -氯 -4-氨基苯氧基苯 ) ]-2 ,3 -二氮杂萘 -1 -酮(1 ) .1通过 Yamazaki聚合 ,与多种芳香二酸进行亲核缩聚反应 ,高产率地合成了一类新型氯代聚芳酰胺 .在适宜的聚合条件下 ,获得了高分子量的聚合物 ,其特性粘度为 0 .60～ 0 .76d L/g;以 MS、FTIR,1 H NMR等手段分析了聚合物的结构 ;并用 DSC、TGA研究了聚合物的耐热性能 .结果表明 ,新型聚芳酰胺的玻璃化转变温度为 2 98.6～ 3 2 0 .3℃ ,N2 气中质量损失 1 0 %的温度 >447℃ .聚合物易溶于二甲基甲酰胺、间甲酚等极性溶剂 ,在吡啶。

A novel aromatic diamine 2 (4 aminophenyl) 4 (3 chloro 4 amimo phenoxybenzene) 2,3 phthalazinone 1(1) containing aza hetero cycle was synthesized from 4 (3 chloro 4 hydroxyphenyl) 2,3 phthalazinone 1(OC HPPZ) and used to prepare a new class of aromatic polyamides from various arylene dicarboxylic acids using Yamazaki method via direct polycondensation. The structure of diamine monomer and polymers was characterized by MS?FTIR and 1H NMR. The polyamides obtained had high molecular weight with the inherent viscosity of 0 60~0 76 dL/g, glass transition temperature of 298 6~320 3 ℃ and 10% mass loss over 447 ℃ under N 2. The polymers were readily soluble in polar solvents such as NMP?DMF and m cresol. Clear, tough films can be obtained from their DMAc solution by casting.