Development and application of latent catalysts for hydrosilylation systems VIII. Control of catalytic activity by poly(1-phenylethylisocyanide)

Abstract

A remarkably high ability of poly(1-phenylethylisocyanide), to control the catalytic activity of H2PtCl6 toward the hydrosilylation, is demonstrated. The catalytic activity is found to appear on heating but not at ambient temperature by the addition of near stoichiometric amounts of the additives. The possibility of a one-pot curing system of the silicone resin, in which a mixture of prepolymer is demonstrated and the catalyst can be stored under ambient conditions and cured smoothly on heating.