申请人:The Dow Chemical Company
公开号:US04205016A1
公开(公告)日:1980-05-27
Highly desirable multifunctional lithium containing initiators are prepared by reacting a compound such as an organo lithium with an organic compound containing at least two 1,1-diphenylethylene groups. Such initiators can be prepared in the absence of polar solvents and are very desirable for the polymerization of dienes such as butadiene to a desirable 1,4 configuration. Several di-lithium compounds have been employed to initiate polymerization of various unsaturated organic monomers.
高度理想的多功能锂含有引发剂是通过将类似有机锂的化合物与至少含有两个1,1-二苯乙烯基团的有机化合物反应而制备的。这种引发剂可以在非极性溶剂的情况下制备,并且非常适用于二烯类聚合物的聚合,例如丁二烯聚合到理想的1,4构型。已经使用了几种双锂化合物来启动各种不饱和有机单体的聚合。