Abstract
Azide-containing copolymers derived from random copolymers of 6-cholorohexyl methacrylate and methyl methacrylate were reacted with C-60 in chlorobenzene to afford polymethacrylates with high C-60 content up to 41.4 wt% soluble in common organic solvents such as CHCl3, THF, and toluene. The SEC chromatograms implied that the obtained copolymers formed intra-and intermolecular aggregation in CHCl3, presumably due to the strong interaction between the pendant C-60 moieties, whereas no aggregation was observed in THF. Band gap of the obtained polymer was lower than that of C-60, while the LUMO level provided 0.6 eV of energetic driving force for charge dissociation at the interface with poly(3-hexylthiophene) (P3HT). The blend with P3HT exhibited high fluorescence quenching efficiency and higher V-oc.