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采用半连续法实验技术测定以VOCl_3-Al_2Et_3Cl_3为催化剂,己烷为溶剂的乙烯-丙烯二元共聚的竞聚率,并运用线性的最小二乘法(简称YBR法)和迭代的非线性最小二乘法(简称TM法)通过电子计算机进行数据处理,得到乙烯-丙烯二元共聚的单体竞聚率和竞聚率乘积: YBR法:r_(C_2H_4)=11.0±0.5,r_(C_3H_6)=0.017±0.001, r_(C_2H_4)r_(C_3H_6)=0.18+0.01; TM法:r_(C_2H_4)=11.0(95％可信度,9.4—12.9), r_(C_3H_6)=0.017(95％可信度,0.014—0.020), r_(C_2H_4)r_(C_3H_6)=0.19±0.05。
The semi-continuous experimental method was used to determine the reactivity ratio of ethylene-propylene binary copolymerization using VOCl_3-Al_2Et_3Cl_3 as catalyst and hexane as solvent. Linear least squares method (YBR) and iterative nonlinear least squares (C_3H_6) = 0.017 ± (r_ (C_2H_4) = 11.0 ± 0.5) was obtained by the data processing of the computer by electronic computer (referred to as TM method), and the product of the reactivity ratio and the reactivity ratio of the ethylene- 0.001, r_ (C_2H_4) r_ (C_3H_6) = 0.18 + 0.01; TM method: r_ (C_2H_4) = 11.0 (95% confidence interval, 9.4-12.9), r_ (C_3H_6) = 0.017 -0.020), r_ (C_2H_4) r_ (C_3H_6) = 0.19 ± 0.05.