【摘要】 本工作研究了 Ni（naph）₂ -BF₃·OEt₂-Al（i-Bu）₃-BF₃·OEt₂ （简称Ni-B-Al-B）体系催化丁二烯聚合的活性,考察了聚合温度、时间和Ni/B预混比对聚合反应的影响。结果表明,聚会反应速度与单体浓度呈一级关系,表现活化能约51.4 kJ/mol,催化剂利用率大于20％,且随温升而增加。更多还原

【Abstract】 The kinetic behavior of butadiene polymerization with Ni(naph)2-BF3·OEt2-Al(i-Bu)3-BF3·OEt2, or Ni-B-Al-B, as catalyst in hydrogenated gasoline was studied.The effects of polymerization temperature, polymerization time, and premixing of Ni-B on the rate of polymerization were investigated.The results show that the rate of polymerization is the first order with respect to the concentration of monomer.The total activation energy of butadiene polymerization is 51.4 kJ/mol, and the efficiency of the principle catalyst is larger than 20%, which increases with the increase of polymerization temperature.更多还原