Polypyrrole metallic nanoparticle composites

Another approach to deposit conducting polymers can be achieved by photochemical polymerization of the monomer precursors. This procedure provides a means by which different composites (metals and/or various alloy materials with or without biomolecules) can be deposited from an electrolyte onto a non-conducting surface. Such a procedure was optimized and applied for polymerization of pyrrole in the presence of metal nanoparticles [61]. Photopolymerized films containing metals analyzed by environmental scanning electron microscopy (SEM) appeared to be typical of amorphous polypyrrole in which bright Ag particles were found on the surface (Fig. 7.6). 

Conductive magnetic materials are usefiil in the fabrication of sensors and devices.They consist of magnetic nanoparticles in a conductive polymer matrix. A charge transfer can be estabUshed between the particle surface and the polymer, so that the material acts as a united electronic system. Some proposed compositions are magnetite-polyanyline, maghemite-polypyrrole, cobalt ferrite- polypyrrole, and several metal-polymer combinations." ... 

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