以盐酸苯胺为催化剂,对羟基苯甲醛与苯胺通过缩合反应,合成4,4'-二氨基-4"-羟基三苯基甲烷(DAHTM)单体.DAHTM单体与均苯四甲酸二酐(PMDA)聚合反应,得到含羟基的聚酰胺酸(DAHTM/PMDA-PAA)溶液,经涂膜,热亚胺化后,制成相应的聚酰亚胺薄膜,并对其表面性能进行了研究.
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