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用(13)CNMR研究了由基团转移共聚得到的甲基丙烯酸甲酯-丙烯酸丁酯共聚物的微观结构，共聚物中单体链节的三元组含量从季碳和羰基碳的共振信号测得，实验测得的三元组分数与通过竞聚率和单体组成比按末端基效应模式的计算值相符．丙烯酸丁酯由于具有大得多的竞聚率值而呈现较强的均聚倾向．
The (13) CNMR was used to study the microstructure of methyl methacrylate-butyl acrylate copolymer obtained by group transfer copolymerization. The content of triad chains in the copolymer was determined from the resonance signals of quaternary carbon and carbonyl carbon Measured, the experimentally measured triad fraction is in agreement with the calculated end-grouping mode by the reactivity ratio and the monomer composition ratio. Butyl acrylate exhibits a strong tendency to homogenize due to the much higher reactivity ratio values.