The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate and through a one-step condensation reaction in organic solvent and under the action of catalyst.
第二种聚酰亚胺聚合
是芳香族四酸二酐与芳香族二异氰酸酯，
有机溶剂中，
剂的作
下，一步法缩合反应制备得到；
The first polyimide polymer is prepared with aromatic fluoric diamine and aromatic tetracid dihydride and through a two-step condensation reaction in organic solvent and under the action of catalyst.
第一种聚酰亚胺聚合是芳香族含氟二胺与芳香族四酸二酐，有机溶剂中，剂的作下，两步法缩合反应制备得到；
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