Przemysl Chemiczny, Vol.96, No.7, 1503-1507, 2017
N-Alkoxonium salts as coinitiators in radical polymerization sensitized with squarine dye after irradiation with UV-visible light
Six N-alkoxypyridinium salts were synthesized, identified and used together with 1,3-bis(4-bromophenylamino) squarine as coinitiators in 2-component photoinitiating systems for radical polymerization of HOCH2CHEt(CH2OH)(2) triacrylate at 25 degrees C and light intensity 30 mW/cm(2) (wave length 300-500 nm) to det. the kinetics of photopolymerization. The 2-component systems squarine dye/N-alkoxypyridnium salts were found very efficient for initiation of the radical polymerization.