Process for synthesis of epoxy resin from vanillin-based dialdehydes, aminophenol derivatives, and epichlorohydrin

Abstract

The present disclosure relates to a chemical process and in particularly, relates to a process for synthesis of epoxy resin from vanillin-based dialdehydes, aminophenol derivatives, and epichlorohydrin. The process comprising preparing a dialdehyde compound (DAC) by dissolving a vanillin derivative in an anhydrous dimethylformamide (DMF); preparing a diphenol compound (DPC) by dissolving the dialdehyde compound (DAC) in an absolute ethanol; mixing the diphenol compound (DPC) with an epichlorohydrin (ECH) in a presence of a tetrabutylammonium bromide (TBAB) to form a reaction mixture; adding an aqueous sodium hydroxide (NaOH) solution dropwise to induce ring closure and promote epoxy formation; extracting the epoxy resin by using a dichloromethane (DCM) or an ethyl acetate and drying the epoxy resin over an anhydrous sodium sulfate (Na2SO4) to remove residual moisture; evaporating solvent under reduced pressure in a rotavapour, yielding a high-purity dual imine functionalized epoxy resin suitable for advanced material applications.

Dependencies are inferred from the claim text.