Divanillin-based aromatic amines: synthesis and application as curing agents for bio-based epoxy thermosets

Etienne Savonnet , Cédric Le Coz (1) , Etienne Grau (1, 2) , Stéphane Grelier (1, 2) , Brigitte Defoort (3) , Henri Cramail (4, 2)

1 LCPO - Laboratoire de Chimie des Polymères Organiques
2 Team 2 LCPO : Biopolymers & Bio-sourced Polymers
3 ArianeGroup
4 LCPO - Laboratoire de Chimie des polymères organiques

New bio-based diamines were successfully synthesized from vanillin and fully characterized. These amines, methylated divanillylamine (MDVA) and 3,4-dimethoxydianiline (DMAN), were then used as curing agent with epoxy monomers. Epoxy thermosets obtained from these new bio-based amines exhibited promising thermomechanical properties in terms of glass transition temperature and char residue. These latter could be valuable alternative to conventional amine hardener.

Domaines: Matériaux; Polymères; Chimie organique; Science des matériaux [cond-mat.mtrl-sci]

Etienne Savonnet, Cédric Le Coz, Etienne Grau, Stéphane Grelier, Brigitte Defoort, et al.. Divanillin-based aromatic amines: synthesis and application as curing agents for bio-based epoxy thermosets. Frontiers in Chemistry, 2019, 7, ⟨10.3389/fchem.2019.00606⟩. ⟨hal-02366946⟩