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本文报告了在TiCl_4～MgCl_2～AlCl_3～Zn(i-Bu)_2/Al(i-Bu)_3催化体系的乙烯聚合反应中,二异丁基锌对产物分子量和聚合活性的影响。结果表明:在适宜的聚合条件下,采用二异丁基锌可以有效地控制产物的分子量。对于聚合反应中二异丁基锌的作用问题也进行了讨论。
This paper reports the effect of diisobutylzinc on the molecular weight and polymerization activity of ethylene in the TiCl 4 ~ MgCl 2 ~ AlCl 3 ~ Zn (i-Bu) _2 / Al (i-Bu) _3 catalyst system. The results show that diisobutylzinc can effectively control the molecular weight of the product under suitable polymerization conditions. The problem of the action of diisobutylzinc in the polymerization reaction is also discussed.