In the course of cis copolymerization of butadiene(BD) with isoprene(IP) by using Nd(naph) 3 Al(C 2H 5) 3 ( t C 4H 9)Cl as catalyst in toluene, tert butylchloride or allyl chloride was added to give a soluble, gel free cyclized copolymer.是什么意思

- 采用 Nd( naph) 3- Al( C2 H5) 3- ( t- C4 H9) Cl三组分稀土催化剂进行丁二烯 ( BD) -异戊二烯( IP)的顺式共聚合；在聚合过程中引入有机氯代烃 ( RCl) ；以与聚合液中的烷基铝作用生成阳离子活性种；引发已生成的共聚物的环化反应及单体的环聚反应；得到可溶性无凝胶且含有环聚成分的环化共聚合产物 .