The synthesis of model block copolymers of Poly(cis-1,4-isoprene : styrene)

Abstract

The synthesis of model block copolymers of poly(cis-1,4-isoprene : styrene)initiated by butyllithium in the solvent benzene is described in detail, and the analysis of the microstructure of the polyisoprene sequence discussed. The copolymers were found to be of narrow distribution in molecular size and composition and the microstructure was close to that expected from previously published results on the synthesis of polyisoprenes.