Radical photopolymerization reactions under air upon lamp and diode laser exposure: The input of the organosilane radical chemistry

A new concept based on the conversion of the peroxyl radicals generated under air (ROO) with the concomitant formation of new initiating radicals to overcome the oxygen inhibition in particular free radical photopolymerization reactions (low intensity, low viscosity, relatively low film thickness) is proposed. This is achieved using organosilanes and the specific input of this new radical chemistry to various Type I or Type II photoinitiating systems (PI). Through many selected examples corresponding to a broad choice of experimental conditions—lamps (UV or visible lights) and laser diodes, the outstanding performance of a lot of organosilanes containing photoinitiating systems is disclosed.