Copolymerization of 1,3-butadiene and styrene under the action of n-butyllithium in the presence of an amine-containing modifier in hexane

Specific features of the copolymerization of 1,3-butadiene and styrene in the presence of n -butyllithium and a mixture of amine-containing alkali and alkaline earth metal alcoholates in hexane were studied. The kinetic parameters of the process and the molecular characteristics of the copolymer were determined. The suggested initiating system allows preparation of butadiene–styrene rubber with high content of 1,2-units in solution.