Polymerization of triallyl cyanurate

Abstract Differential thermal analysis (DTA) curves for the polymerization of triallyl cyanurate show two exothermic maxima. By integrating the area under the DTA curves the heats evolved during each exotherm are determined. Combination of these heat values with infrared spectral data indicates that the first step in the polymerization of TAC involves polymerization of two allyl groups, and the second step involves rearrangement to the polymerized triallyl isocyanurate form followed by polymerization of the remaining allyl group. Heats of combustion of TAC and TAIC indicate that the magnitude of the heat released during the second exotherm is reasonable and in line with the proposed mechanism.