本文研究了α-取代烯类聚合反应的键接异构问题。通过严格求解动力学微分方程组,推导出聚合物的头-尾序列分布函数以及各种二元组和三元组浓度的表达式,并将这些结构参数与聚合条件及反应时间或单体转化率联系起来,因而可根据反应条件预测聚合物的微观结构。当反应时间足够长时,文中的公式可简化为前人用几率法得到的结果。 In this paper, the bonding heteroatoms of α-substituted vinyls are studied. By strictly solving the differential equations of dynamics, the expression of the head-to-tail distribution function of the polymer and the concentrations of various binary and triplet groups are deduced. These structural parameters are correlated with the polymerization conditions and the reaction time or monomer conversion Therefore, the microstructure of the polymer can be predicted based on the reaction conditions. When the reaction time is long enough, the formula in the paper can be simplified to the previous one by using the probability method.