采用Nd(oct)-3,Al(i-Bu)_3并添加第三组分有机氯化物组成催化体系,以正己烷为溶剂,进行了丁二烯与苯乙烯的溶液共聚合。探讨了第三组分结构对共聚合的影响,并根据其克分子极化度P及溶剂极性参数E_T~(30)解释其影响规律。实验结果表明,三氯甲烷和氯代正丁烷作为第三组分有利于合成高顺式丁苯共聚物。 Nd (oct) -3, Al (i-Bu) _3 and adding the third component of organic chloride catalyst system, n-hexane as a solvent, butadiene and styrene solution copolymerization. The influence of the third component structure on the copolymerization was discussed, and its influence was explained according to the molecular polarizability P and the solvent polarity parameter E_T ~ (30). The experimental results show that chloroform and n-butyl chloride as the third component is conducive to the synthesis of high cis-butyl copolymer.