聚异戊二烯橡胶(IR)又称合成天然胶,可以单独使用,也可以与天然橡胶或其他合成橡胶并用,应用前景十分广泛。目前,聚异戊二烯橡胶的生产主要采用溶液聚合工艺,工业上采用的催化体系有齐格勒-钠塔(铝钛)催化剂、有机锂催化剂和稀土催化体系三种。除Shell公司生产锂系聚异戊二烯橡胶外,世界上大多 Polyisoprene rubber (IR), also known as synthetic natural rubber, can be used alone, can also be used with natural rubber or other synthetic rubber, the application prospects are very broad. At present, the production of polyisoprene rubber mainly uses the solution polymerization process. The industrialized catalytic system includes three kinds of Ziegler-sodium tower (Al-Ti) catalysts, organic lithium catalysts and rare earth catalyst systems. In addition to the Shell company producing lithium polyisoprene rubber, the majority of the world