合成了一种 4,4′-二氨基 - 4″-羟基三苯甲烷的二胺单体 ,用该单体分别和芳香性二酐、酯环二酐以及含氟二酐制备了三种含羟基聚酰亚胺 ,并对其溶解性能和热性能进行了初步研究 .发现含羟基二胺单体和含氟二酐生成的聚酰亚胺能溶解在极性非质子溶剂中 ,且显示出良好的耐热性能 ,这种聚酰亚胺可通过羟基引入功能基团制备功能性聚酰亚胺 A 4,4’-diamino-4 "-hydroxyltriphenylmethane diamine monomer was synthesized. Three monomers containing aromatic diacid, ester dianhydride and fluorine-containing dianhydride were prepared. Hydroxyl polyimide, and its solubility and thermal properties of a preliminary study found that hydroxyl-containing diamine monomer and fluorine-containing dianhydride generated polyimide can be dissolved in a polar aprotic solvent, and shows Good heat resistance, this polyimide can be introduced into functional groups through the hydroxyl functional polyimide