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1.研究了聚合时起始单体浓度、催化剂组分浓度以及聚合温度对产物分子量的影响,找到聚合度的倒数分别与起始单体浓度的倒数、氯化钴浓度的平方根、一氯二乙基铝浓度 的平方根呈直线关系。根据聚合温度与产物聚合度的关系,求得总的链终止活化能约在14千卡/克分子左右。 2.研究了聚合时几种给电子化合物及庚烷的加入对产物分子量的影响。发现聚合度的倒数与给电子化合物的浓度或庚烷浓度成直线关系,设直线斜率为链转移系数,则对三乙胺、四氢呋喃、吡啶、乙硫醚、庚烷分别为1.87,0.36,0.19,0.14,0.0012。
1. The effects of initial monomer concentration, catalyst component concentration and polymerization temperature on the molecular weight of the product were investigated. The reciprocal of the polymerization degree was found to be inversely proportional to the inverse of the starting monomer concentration, the square root of the cobalt chloride concentration, The square root of ethyl aluminum concentration has a linear relationship. According to the relationship between the polymerization temperature and the degree of polymerization, the total chain termination activation energy is about 14 kcal / mol. The effects of several electron donating compounds and heptane on the molecular weight of the product were investigated. The reciprocal of the degree of polymerization was found to have a linear relationship with the concentration of the electron donor compound or the concentration of heptane, and the slope of the straight line was assumed to be the chain transfer coefficient, then 1.87, 0.36, 0.19 for triethylamine, tetrahydrofuran, , 0.14,0.0012.