High Tg thermosetting resins from resveratrolElectronic supplementary information (ESI) available: Chemical synthesis details and NMR spectra, CIF files for crystal structures and polymer characterization data. CCDC 777073 and 804881. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c3py00438d

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%). Cyanate esters made from the natural product resveratrol gave thermosetting materials with T g > 300 C.