Solid-phase interaction of C-60 fullerene with poly(N-vinylpyrrolidone)

It was shown that the solid-phase interaction of C-60 fullerite with a poly mer takes place during the joint grinding of powders, A comparative analysi s of the absorption electronic spectra of the aqueous and chloroform soluti ons of C-60-polymer complexes prepared by various methods was performed usi ng known data for C-60 fullerene obtained by vibrational spectroscopy. It w as found that the fullerene-polymer complex synthesized by a method, involv ing an evaporative concentration of solution, is characterized by the forma tion of a local bond of the donor-acceptor type. In a complex of the same c omposition prepared without a solvent, the bonds of the hydrophobic type ar e uniformly distributed over the surface of the C-60 molecule.