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采用游离基引发剂使甲基丙烯酸三丁基锡酯单体和某些乙烯类单体进行共聚合.其竞聚率用YBR法解出共聚方程的微分式而测得.甲基丙烯酸三丁基锡酯(M_1)和甲基丙烯酸甲酯(M_2)共聚反应的竞聚率r_1=0.515±0.061,r_2=0.669±O.071; 它和苯乙烯(M_2)共聚反应的竞聚率r_1=0.328±0.028,r_2=1.203±0.050;它和丙烯酸甲酯(M_2)共聚反应的竞聚率r_1=1.013±0.055,r_2=0.288±0.032.而所得到的甲基丙烯酸三丁基锡酯的Q、e值是它对各个单体的所有Q、e值的平均值,其Q=0.622,e=-0.329.
The free radical initiator was used to copolymerize the tributyltin methacrylate monomer and some of the vinyl monomers.The copolymerization rate was measured by the differential equation of the copolymerization equation by YBR method.The tributyltin methacrylate The copolymerization reaction rate of M_1 and M_2 was r_1 = 0.515 ± 0.061, r_2 = 0.669 ± 0.071. The reactivity ratio of copolymerization with styrene (M_2) was r = 0.328 ± 0.028, r_2 = 1.203 ± 0.050. The reactivity ratio of copolymerization with methyl acrylate (M 2) was r 1 = 1.013 ± 0.055 and r 2 = 0.288 ± 0.032. The obtained Q, e value of tributyl methacrylate was The average of all Q, e values for each monomer, with Q = 0.622 and e = -0.329.