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用~(13)C-NMR方法研完了不同配料比的丁二烯-异戊二烯本体共聚和溶液共聚物的结构,定量计算出了共聚物二元组的浓度和数均序列长度,采用T(?)DO″S法计算出了本体共聚和溶液共聚的竞聚率,并证明各种共聚产物的序列分布都服从一级Markov统计模型。
The structures of butadiene-isoprene bulk copolymer and solution copolymer were studied by ~ (13) C-NMR and the concentration and number average sequence length of copolymer were calculated quantitatively T (?) DO "S method was used to calculate the reactivity ratio between bulk copolymerization and solution copolymerization, and to prove that the sequence distributions of various copolymerization products obey the first-order Markov statistical model.