Copolímero de bloco estrela de núcleo funcionalizado e processo para a preparaçao do mesmo

摘要

A core functionalized star block copolymer formed of a vinyl aromatic hydrocarbon and/or a conjugated diene and a polyalkenyl aromatic coupling agent wherein the core functionalization is provided by reaction of the star polymer core with an asymmetric bi- or polyfunctional capping agent.