PROCESS FOR THE PREPARATION OF IMPROVED CIS-1,4-POLYISOPRENE

摘要

In the process for the preparation of cis-1, 4-polyisoprene by polymerizing isoprene by use of a catalyst composed essentially of an organoaluminum compound and a titanium tetrahalide, an improvement wherein a compound having two independent conjugate diene groups is present in the polymerization system in an amount of up to 5 parts by weight per 100 parts by weight of the isoprene.