H. Chen et al. / Journal of Photochemistry and Photobiology A: Chemistry 232 (2012) 57–63
63
4. Conclusions
TMDS was synthesized and its structure was confirmed by 1H
NMR and IR. It has a maximal absorption of 237 nm in ethanol due to
–* transition with εmax = 2.73 × 104 L mol−1 cm−1. LCMS showed
that TMDS could be photolyzed in methanol to form sub-sulfonic
acids under UV light. The kinetics data results showed that TMDS
was an effective cationic photoinitiator. Both rate of polymeriza-
tion and ultimate conversion was increased with increase in TMDS
concentration and light intensity.
Acknowledgements
The author would like to thank Open Fund from State Key
Laboratory of Chemical Resource Engineering, Beijing University
of Chemical Technologyand Science and Technology Bureau of
Changzhou (CZ20110007) for the financial support.
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