AbstractThe divinyl ester monomers were prepared by reacting glycidyl methacrylate (GMA) with dioic acids (adipic acid, glutaric acid, succinic acid, malonic acid and oxalic acid). The reaction between the active epoxy groups of GMA and the carboxylic group of the dioic acid was catalysed by triphenyl phosphine. the curing kinetics of divinyl ester monomers were studied using benzoyl peroxide as a free radical initiator. The kinetic studies were made by differential scanning calorimetry (DSC) using the isothermal method. An explanation for the difference in the kinetic parameters with different monomers is given. A shift in the kinetic model from autocatalytic to nth order was observed in all cases. A reaction mechanism for the radical polymerization is supported by a detailed mathematical derivation and experimental results.
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