The activity ratio of AN and AIA measured by Fineman-Ross method was 1.30 ( AN) and 0.59 ( AIA), respectively, which revealed that the AN-AIA copolymerization was a non-ideal and unstable system.

• 采用Fineman-Ross法测得丙烯腈(AN)-衣康酸铵(AIA)体系的竞聚率为:AN=1.；30；AIA=0