Journal of Industrial and Engineering Chemistry, Vol.18, No.5, 1577-1581, September, 2012
Synthesis of ditrimethylolpropane acrylate with low functionality for UV-curable coatings
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An UV-curable acrylic resin, ditrimethylolpropane acrylale (DTMPA), with low functionality was
synthesized by esterification of ditrimethylolpropane and acrylic acid. The influences of the synthetic process, such as catalyst, acid/alcohol ratio, inhibitor, solvent, reaction time, and temperature were discussed in detail. The chemical structure of the DTMPA was characterized by FT-IR, 1H NMR, and 13C NMR spectra. The optimal synthesis conditions of the DTMPA were determined, and the resulting product had a yield of 86.5% and pale color. The results of a UV-curing test indicate that the DTMPA has a higher curing speed than that of trimethylolpropane triacrylate.
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