3,4'-ODA改性PPTA对结构及性能影响的分析

Structure and Thermal Property of Modified PPTA by 3,4'-ODA

通过添加第三单体3,4'-二氨基二苯醚(3,4'-ODA)对聚对苯二甲酰对苯二胺(PPTA)进行改性,能够使其在极性有机溶剂中聚合并得到聚合物纺丝原液。用元素分析、红外光谱和热重分析的方法来验证和分析聚合体的结构和热性能。实验结果表明:3,4'-ODA的加入量对共聚体的结构和性能均有明显的影响。

PPTA fiber was a kind of high strength, high modulus, high temperature resistant fiber. The 3,4′- ODA was added as the third monomer in the copolymerization. The structure and property of copolymer was analyzed and certified by TGA, FTIR and elemental analyzer. The results showed that addition of 3,4′-ODA had significan effect on structure and property ofcopolymer.