以偶氮二异丁腈(AIBN)为引发剂,N,N-二甲基甲酰胺(DMF)为溶剂,在N2气氛中,70℃时采用自由基溶液聚合法进行了丙烯腈(AN)和N-乙烯基咪唑(VIM)的共聚合反应.采用核磁共振氢谱对不同单体投料比条件下得到的P(AN-co-VIM)的组成进行了测定.分别用F-R法、K-T法计算了2种单体的竞聚率.结果为F-R法r1=0.12,r2=0.61;K-T法r1=0.14,r2=0.67.
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