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Polymer coating of metal nanoparticles by a combination of inert gas condensation and plasma polymerization processes

Polymer-Beschichtung von metallischen Nanopartikeln durch eine Kombination von Inertgas-Kondensation und Plasma Polymerisation

Cadle, T.M.; Narasimhan, K.S. ; Metal Powder Industries Federation -MPIF-, Princeton/N.J.:
Advances in Powder Metallurgy and Particulate Materials 1996. Proceedings
Princeton: MPIF, 1996
ISBN: 1-87895-459-8
World Congress on Powder Metallurgy and Particulate Materials <1996, Washington/DC.>
Fraunhofer IFAM ()
inert gas condensation; infrared spectroscopy; metal nanoparticle; plasma polymerization coating; TEM

The formation of shell structures consisting of a nanocrystalline metal core and a thin polymer coating is shown to be feasible by means of a two step process: Silver nanoparticles were prepared by inert gas condensation in argon and fed into a microwave downstream reactor by forced gas flow. In this reactor, hexamethyldisiloxane was added to the gas and dissociated in a microwave plasma to form a thin polymer shell around the silver nanoparticles. The chemical structure of the polymer films has been studied by infrared spectroscopy. A set of experimental parameters was determined that enabled us to condense silver nanoparticles and to deposit a carbon rich polymer film.