Interaction of N-vinyl-2-pyrrolidone with surface of hydride silica

The solid-phase thermal and catalytic hydrosilylation of N-vinyl-2-pyrrolidone on the surface of hydride silicas has been studied. It was found that thermal polymerization of N-vinyl-2-pyrrolidone is a side reaction of the thermal hydrosilylation of N-vinyl-2-pyrrolidone. During the catalytic hydrosilylation of N-vinyl-2-pyrrolidone, two side reactions took place. These were the interaction of the silicon-hydride groups with water and with propanol-2 and the formation of metallic platinum. The thermal hydrosilylation of N-vinyl-2-pyrrolidone, without the use of catalyst and solvent, is the preferred method for the chemical bonding of N-vinyl-2-pyrrolidone in the surface layer of hydride silicas.