First Endohedral Metallofullerene-Containing Polymer: Preparation and Characterization of Gd@C82-Polystyrene

Metallofullerene-containing copolymers (0.12, 0.20, 0.40, and 0.60 wt % Gd@C-82) were first synthesized via radical bulk copolymerization. The structures and the properties of the new polymers, Gd@C-82-PS, were investigated by GPC, UV-vis spectroscopy, FTIR, C-13 N-MR, CV/DPV, and XPS. The polymerization behavior of the metallofullerene and the properties of the Gd@C-82-PS polymers were different from those of C-60-PS and PS. Gd@C-82 exhibited a stronger radical-scavenging ability than that of hollow fullerenes in the polymerization. Molecular weights and the electron-accepting ability of the polymers were discussed and possible mechanisms of the influences were proposed.