A new bio-based tri-functional epoxy resin was prepared with glycidation of tri-hydroxyl precursor which was synthesized via oximation of a two-functional material derived from vanillin [1]. Various types of amine based hardeners (such as DDN, DD and DDO) were used. Thermal analysis (performed by DSC) of the resulted epoxy-amine products showed the glass transition temperatures (Tg) ranging from 105 to 140 ◦C. For instance, the epoxy network containing DDN (EDVCPO-DDN) displayed higher Tg value (140 ◦C) as compare to the other samples. The behaviour could be due to the higher number of hardener functionality and rigid structure formed inside the network [2]. However, with changing the structure of the hardeners (by atoms), Tg of the resultant thermoset resins decreased to the lowest value [3]. Therefore, the obtained thermoset resins using DDO (as a hardener), possibly diminishing the overall cross-linking and Tg to the lowest value (105 ◦C) among the analogue samples prepared with EDVCPO.

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