VISIBLE LIGHT CURING OF ACRYLIC COATINGS: THE ROLE OF BIS(TRICHLOROMETHYL)-SUBSTITUTED-1,3,5-TRIAZINES IN SEVERAL DYE/AMINE PHOTOINITIATING SYSTEMS

摘要

The present work deals with the study of a three-component system. The ability of a combination of a dye (Rose Bengal), an amine and a triazine to initiate a polymerization under visible light was measured by Time Resolved FT-IR experiments. The addition of a triazine to a dye / amine photoinitiating system clearly leads to an increase of the efficiency of the polymerization under visible light irradiation. Time-resolved laser spectroscopy and steady state fluorescence quenching experiments were performed in order to understand the interactions between these three compounds occurring after light absorption by the dye.