A study of the synthesising of trimethylolpropane triacrylate catalyzed by silicotungstic acid

Using silicotungstic acid(SiW) as a catalyst acrylic acid(AA) and trimethylolpropane (TMP)as raw materials,trimethylolpropane triacrylate is synthesised The optimum reaction conditions are as follows: acrylic acid is 0.775mol, trimethylolpropane is 0.25mol,and the amount of catalyst is 0.2% of the total quantity of the reactants,the reaction temperature is 120℃ and the reaction time is 1h.Under these conditions,esterification rate may reach 83.5%,and the purity of the product may be over 98%.