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14 Pages

Surface photografting of unsaturated alkoxysilanes onto polyolefins with excimer-UV lamps

Abstract-Photografting of vinyltrimethoxysilane (VIME), vinyltriethoxysilane (VIET) and methacryloxypropyltrimethoxysilane (METHA) onto polyethylene and polypropylene films was carried out using monochromatic UV-light from KrCl*-excimer lamps that allowed to irradiate the interface between the polymer substrate and the silane layer by passing the radiation through the polymer. The experimental results show that this approach offers far-reaching possibilities to perform photografting reactions without the need for an inert atmosphere and, therefore, the technical effort for surface grafting is comparatively low.