论文部分内容阅读
本文以MoCl_2(C_7H_(15)COO)_2-(i-Bu)_2AlO■为催化剂,在加氢汽油中,对丁二烯反应动力学进行了研究,考察了单体浓度、催化剂浓度以及聚合温度等因素对聚合速度的影响,测定了有关动力学参数。实验结果表明,单体浓度和主催化剂浓度对聚合速度均呈一级关系,聚合总活化能为20kcal/mol,催化剂利用率约为1.2％,活性中心浓度约为9.6×10~(-6)mol/l。在40～60℃范围内,链增长速度常数随聚合温度升高迅速增加,而活性中心的平均寿期则随温度的升高而降低。
The kinetics of butadiene reaction in hydrogenated gasoline was studied in the presence of MoCl_2 (C_7H_ (15) COO) _2- (i-Bu) _2AlO. The effects of monomer concentration, catalyst concentration and polymerization temperature And other factors on the polymerization rate, the determination of the kinetic parameters. The experimental results show that the monomer concentration and the main catalyst concentration have a first order relationship with the polymerization rate. The total activation energy of the polymerization is 20 kcal / mol, the catalyst utilization rate is about 1.2%, and the active site concentration is about 9.6 × 10 -6. mol / l. In the range of 40 ~ 60 ℃, the chain growth rate constant increases rapidly with the increase of the polymerization temperature, while the average life of the active center decreases with increasing temperature.