Fully Biobased Epoxy-Imine Monomer: Synthesis and Curing with Amines Toward Vitrimeric Materials.

ABSTRACT: This study presents the synthesis of a new biobased epoxy monomer derived exclusively from biobased vanillin and epichlorohydrin. Using only sustainable processes, vanillin is first converted to vanillin amine hydrochloride, which is then condensed with vanillin to obtain a diphenol containing an imine moiety. This diphenol subsequently reacts with epichlorohydrin to produce the epoxy monomer. Unlike thermosetting networks in which the imine is formed during the curing reaction, this epoxy monomer incorporates the imine moiety, and no further processing is needed after network formation due to water release. It presents a low molecular weight (399.44 g/mol), enabling the formation of a wide range of highly cross-linked materials. The epoxy monomer can be melted at 100 °C, which facilitates

SUBMITTER: Verdugo P 

PROVIDER: S-EPMC12918244 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature