Because the lower solubility in organic solvent (such as: AN and DMSO), it is difficulty to increase the content of AIA in resulting copolymers obtained by solution polymerization and aqueous suspension polymerization technique.

• 由于AIA在DMSO和AN中的溶解度较低，所以最终聚合物中AIA含量很低，溶液聚合及悬浮聚合工艺不适用于AN/AIA共聚物的制备。