The tricyanate esters of the natural product resveratrol (1) and dihydroresveratrol (2) were synthesized and subjected to thermal curing which gave polycyanurate network polymers which exhibited glass transition temperatures of >340 °C and 334 °C, respectively. Thermal decomposition temperatures of 412 °C and 403 °C for polycyanurates of 1 and 2, respectively, were typical of this class. However, char yields (600 °C) of 71% and 66% for 1 and 2, respectively, were more than double that from the polycyanurate of bisphenol A dicyanate (25%).
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Cash et al. (2013) studied this question.
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