METHOD FOR PRODUCING POLYMER MATERIALS CONTAINING PARTICLES OF METALS AND METAL OXIDES WITHIN NANOMETRIC SIZE RANGE Russian patent published in 1998 - IPC

FIELD: development of new high-technology composite materials. SUBSTANCE: method resides carrying out collective condensation of vaporized p-xylylene, or derivatives thereof, or mixtures, and vapors of one or several metals and/or oxides, while, simultaneously, polymerizing condensate and forming composite polymer material within temperature range from minus 20 to plus 140 C. Starting p-xylylene compounds are prepared by pyrolysis of corresponding precursor cyclophanes. Depending on evaporation rate of components, method makes it possible to produce polymer composite material containing metal particles, which size ranges from 0.5 nm up to several dozens of nanometers. These materials have metal content and/or metal oxide content from 0.5 to 50%. Particle size and electrostatic properties of composite materials depend also on chemical structure of precursor polymer. This structure can be varied over wide range by varying functional groups in precursor cyclophanes. EFFECT: new high-quality composite material. 2 cl, 2 tbl