LANGMUIR-BLODGETT-FILMS MADE FROM C-60 FULLERENE WITH GRAFTED MACROMOLECULES

Langmuir-Blodgett films made from C-60 fullerene with grafted polymer chains - polystyrene and polyethylene oxide - are obtained for the fir st time. The Langmuir-Blodgett films are obtained by the transfer of L angmuir films onto substrates of single-crystal silicon. The Langmuir films and the single-layer Langmuir-Blodgett films of C-60 with grafte d polystyrene are nonuniform. over their thickness anti form a network consisting of aggregates with a size of less than or equal to 6 mu m. The Langmuir films of C-60 with grafted polyethylene oxide are much m ore uniform. They can easily be used to obtain Langmwir-Blodgett films containing up to 20 layers and having a surface that appears smooth u nder an optical microscope. (C) 1998 American Institute of Physics. [S 1063-7850(98)03306-0].