High glass transitions, high storage moduli, high thermal stability, and low water absorption values are crucial criteria of high-performant materials, though there is a challenge when we are confronting the bio-resourced materials with their performances. This work proposes the chemical combination of aromatic bio-based epoxy monomers with potential bio-based anhydrides to produce thermosetting materials with competitive performances. Triglycidyl ether of phloroglucinol (TGPh) and diglycidyl ether of vanillyl alcohol (DGEVA) were copolymerized with hexahydro-4-methylphthalic anhydride or methyl nadic anhydride. These copolymerization reactions start at low temperature, from 35 or 70 °C; that is a first advantage for an industrial up-scaling. The produced thermosets have high bio-based carbon content, ∼50–60%, high glass transition values (>100 °C for DGEVA-based resins and >200 °C for TGPh resins), high storage moduli (2.7–3.1 GPa at 30 °C), high thermal stability (T 5% = 329–359 °C), and very low water absorption (in average ∼1.5% after 15 days). These performances of these bio-based thermosets open windows of application in space, aerospace, or naval industry.

A scheme of development of rigid and elastic materials with a biobased carbon content >54% from humins biorefinery by-products.