Abstract: Maleopimarate (MPA) was synthesized from rosin and maleic anhydride by Diels-Alder reaction， which was used reaction with epichlorohydrin to synthesize rosin-based epoxy resin (MPAER). The dynamic mechanical property, cure kinetics, and thermal stability were characterized by DMA, DSC and TG. It showed that the glass transition temperature of cured MPAER was 53.2 ℃ when the mass ratio of MPAER with MPA was 5∶5, and the average curing activation energy (Eca) was 52.29 kJ/mol. When the heating rate was 10 ℃/min, the initial degradation temperature (Tid), was 211.9 ℃, the fast thermal degradation temperature was 347.7 ℃, and the final degradation temperature was 639 ℃。

Key words: rosin-based epoxy resin, maleopimarate, curing kinetics, thermal stability