Polyaniline complex with fullerene C60

Polyaniline–fullerene composites were prepared either by solid-state blending of both components (composite I) or by the introduction of fullerene during polymerization of aniline (composite II). Composite I had a lower conductivity (1.5×10−7 S cm−1) than composite II (7.2×10−5 S cm−1). Investigation of the composites by solid-state 13C-NMR and FTIR spectroscopy indicated the interaction between polyaniline and fullerene. X-ray diffractograms suggest that the mechanical blending of the components leads to a decrease in the size of fullerene crystallites. In composite II, the diffractograms proved the formation of a polyaniline–fullerene complex comprising the structure corresponding to a doped polyaniline.