AbstractThe present paper describes the synthesis of tetrakis [4‐(1‐phenylvinyl)phenyl]plumbane (1). It was found that “living” mono‐ or difunctional carbanionic polystyrenes are able to react with compound1to form star‐shaped polymers or tetrafunctional crosslinked networks, resp., and it could also be shown that this polyfunctional lead compound can be used to prepare starshaped copolymers containing polystyrene and poly(methyl methacrylat