【摘要】 合成了3种不同相对分子质量的双端氨基(聚)酰胺酸,且以此和3,3′-二氯-4,4′-二氨基-二苯基甲烷(MOCA)为扩链剂,分别制备了聚氨酯弹性体,并对该系列进行了表征,研究了其性能和微相分离情况。结果表明,以(聚)酰胺酸为扩链剂合成的聚氨酯弹性体具有明显的微相分离结构,并具有较好的耐热性和机械性能。更多还原

【Abstract】 In this study,three kinds of double-amino end-capping(poly)imide acids with different molecular weights were synthesized.These(poly)amide acids were used with Moca as chain extender to prepare the PU elastomers.This series of elastomer were characterized.Properties and micro-phase separation were investigated.The results showed that the PU with(poly)imide acids as extender had a clear structure of micro-phase separation and good thermal stability and mechanical properties.更多还原