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.
二种聚酰亚胺聚合物是芳香族四酸二酐与芳香族二异氰酸酯，
有机溶
，催化的作用下，
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.
种聚酰亚胺聚合物是芳香族含氟二胺与芳香族四酸二酐，有机溶，催化的作用下，两步法缩合反应制备得到；
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