以 3 ,5 二硝基苯甲酰氯和对氨基苯甲酸为原料 ,经两步反应合成了新型AB2 型单体 4 ( 3 ,5 二氨基苯甲酰氨基 )苯甲酸。在溶液中通过自缩聚反应合成了新型超支化聚芳酰胺 ,将其活性端氨基与酰氯反应 ,经原位改性合成了五种封端的超支化聚芳酰胺 ,并利用IR、1HNMR、DSC及TG等方法对所合成的六种新型超支化聚合物的结构和性能进行了表征与测试。 A novel AB2 monomeric 4 (3,5-diaminobenzamido) benzoic acid was synthesized via a two-step reaction using 3,5 dinitrobenzoyl chloride and p-aminobenzoic acid as starting materials. A novel hyperbranched polyaramid was synthesized by self-polycondensation reaction in the solution. Five terminal hyperbranched polyaramides were synthesized via in-situ modification of their reactive terminal amino group with acyl chloride. IR, 1HNMR, DSC and TG and other methods for the synthesis of six new hyperbranched polymer structure and performance were characterized and tested.