The polymer of maleic acid was first prepared by water phase polymerization with maleic anhydride,and then esterified with cetric acid to form durable press finishing agent.

• 采用马来酸酐水相聚合生成聚马来酸酐,然后与柠檬酸酯化合成可固化的印染助剂聚多元羧酸酯。