Abstract
This study reports the development of a highly sensitive photopolymerization initiation system with wavelength corresponding to that of the visible Ar laser (488 nm).A previously developed electron-transfer initiation system consisting of a merocyanine dye and a triazine initiator was modified by substitution with (trimethylsilyl) methyl (TMSM).Though the sensitivity of the original system was too low for commercial computer-to-plate (CTP) application, modification with TMSM enhanced the sensitizing effect of the dye more than twofold and conferred excellent thermal stability to the dye. These characteristics satisfy the requirements for commercial CTP applications.