【摘要】 本文讨论了水、氧在钼体系催化丁二烯聚合中的影响。结果表明,以Ziegler-Natta型催化剂聚合丁二烯时,体系中的水和氧都能降低催化活性,延长聚合反应的诱导期和降低聚合速度。采用先在丁二烯中加Al后加Mo的加料方式,可避免降低催化活性。更多还原

【Abstract】 The effect of water and oxygen on polymerization of butadiene in the presence of molybdenum Ziegler-Natta catalyst was investigated. It is found that water and oxygen decreased the activity of the catalyst,resulting in a longer induction period and reduced rate of polymerization. But the decrease in catalyst activity can be prevented by a different catalyst preparation procedure in which the Al compound is added prior to Mo compound addition.更多还原