2013•Journal of Radiation Research and Radiation ProcessingOpen access

Preparation and studies on the properties of thioxanthone photo-initiator comprising of coinitiator amine

Jun Wei

Abstract

In order to promote the photo-efficiency of traditional thioxanthone photo-initiators,2-[2-hydroxy-3-(2-hydroxyethyl-2-methyl)amino]propoxy-thioxanthone(APTX) containing coinitiator amine was synthesized by using the ring-opening reaction of epoxy group.FT-IR and1H-NMR analyses confirmed the structures of APTX.UV-Vis spectra showed that the maximal absorption wavelength of thioxanthone moieties became red-shift as the existence of substituents.The photo-polymerization of trimethylolpropane triacrylate(TMPTA) was made by use of photo differential scanning calorimetry(photo-DSC).The results show that APTX can effectively initiate the photo-polymerization of TMPTA.

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Key concepts: Thioxanthone, TMPTA, Photoinitiator, Polymerization, Polymer chemistry, Chemistry, Amine gas treating, Differential scanning calorimetry