A polyarylate comprising units derived from an aromatic carboxylic acid compound and units derived from a bisphenol compound and containing an epoxy group. According to the process of the present invention, the polyarylate having epoxy group can be economically prepared, by reacting a polyarylate carrying an acid chloride group with a compound having both hydroxyl and epoxy groups. Since the polyarylate of the present invention has epoxy group, it has the reactivity with amino group, hydroxyl group, acid anhydride group, or the like. Therefore, the polyarylate is mixed with another polymer to give a polymer alloy or is utilized as the precursor of a graft-copolymer, utilizing the reactivity.
一种聚芳酸酯,由芳香族
羧酸化合物衍生的单元和双
酚化合物衍生的单元组成,并含有环氧基团。根据本发明的工艺,通过使带有酸性
氯化物基团的聚芳酸酯与同时具有羟基和环氧基团的化合物反应,可以经济地制备具有环氧基团的聚芳酸酯。由于本发明的聚芳酸酯具有环氧基,因此它具有与
氨基、羟基、酸酐基或类似基团反应的活性。因此,利用这种反应性,可将聚芳酸酯与另一种聚合物混合制成聚合物合
金,或用作接枝共聚物的前体。