By grafting polystyryllithium (PSLi) or polyisoprenyllithium (PILi) onto the fullerene borne by the mono-adduct polystyrene (PS)-C-60 (approximate to 90%) obtained upon reacting the fullerene with azide-terminated PS, fairly well-defined palm-tree like polymers PSaC60(PSb)(5) and block copolymers PSaC60(PI)(5) could be obtained. In these architectures, 5 PS (PI) branches of equal length are connected to a PS trunk through a single fullerene molecule.