Synthesis and characterization of UV- and thermo-curable difunctional epoxyacrylates

► Difunctional epoxyacrylates were synthesized from DGEBA and AA. ► The activation energy of the esterification catalyzed by TPP was 63.9 kJ mol−1. ► In a two-stage heating process, a complete reaction was reached without side reaction. ► A maximum of difunctional epoxyacrylate was produced with an equivalent ratio of 0.5.