本文研究定向稀土催化剂组份中引入镁铝络合物后对丁二烯聚合的影响。改变镁铝络合物与氯化物的种类和用量,皆明显的影响其聚合活性。当催化剂中含有苯基镁的烷基铝络合物时,聚丁二烯反-1,4链节可达36％。选择适当的催化剂组成和配比时,含镁稀土定向催化剂具有较高的聚合活性。 In this paper, the influence of the introduction of Mg-Al complex on the polymerization of butadiene was investigated. Altering the type and amount of Mg-Al complex and chloride, all significantly affect their polymerization activity. When the catalyst contains alkyl magnesium aluminum alkyl complexes, polybutadiene anti-1,4 chain can reach 36%. When choosing the proper catalyst composition and ratio, the magnesium-containing rare earth oriented catalyst has higher polymerization activity.