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1.丁二烯以氯化钴四吡啶及一氯二乙基铝组成的可溶性催化剂聚合时,聚合速度对单体浓度为一级关系,对氯化钴四吡啶为一级,对一氯二乙基铝为1/2级。聚合活化能为8.7±0.5千卡/克分子。 2.在苯中或苯及庚烷的混合溶剂中的聚合速度均能以简单的方程式表示之。 3.聚合系统中加入给电子化合物多半能使聚合速度降低。降低的能力依次为:三乙胺>四氢呋喃>乙醚>苯甲醚>N-苯基-β-萘胺。吡啶及乙硫醚较特殊,在用量较小时能提高聚合速度,较大时亦降低聚合速度。在三乙胺、四氢呋喃、乙醚、苯甲醚等情况下聚合速度与给电子化合物浓度的关系可用方程式表示之。
1. Butadiene to cobalt chloride tetrapyridinium and diethylaluminum composition of a soluble catalyst polymerization, the polymerization rate of the monomer concentration for the first-class relationship, cobalt tetrachloride for the first grade, a chlorine two Ethyl aluminum is 1/2. The polymerization activation energy was 8.7 ± 0.5 kcal / mol. 2. The polymerization rate in benzene or in a mixed solvent of benzene and heptane can be expressed in a simple equation. 3. Polymerization system to join most of the electronic compounds can reduce the polymerization rate. The decreasing ability is as follows: triethylamine> tetrahydrofuran> ether> anisole> N-phenyl-β-naphthylamine. Pyridine and ethyl sulfide more special, when the amount of smaller can increase the polymerization rate, the larger also reduce the polymerization rate. The relationship between the polymerization rate and the electron-donor concentration in the case of triethylamine, tetrahydrofuran, diethyl ether, anisole and the like can be expressed by the equation.