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Article

Build-To-Specification Vanillin and Phloroglucinol Derived Biobased Epoxy-Amine Vitrimers

1
CIDETEC, Basque Research and Technology Alliance (BRTA), Paseo Miramón, 196, 20014 Donostia-San Sebastián, Spain
2
SPECIFIC POLYMERS, Zac Via Domita, 150 Avenue des Cocardières, 34160 Castries, France
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(11), 2645; https://doi.org/10.3390/polym12112645
Received: 22 October 2020 / Revised: 6 November 2020 / Accepted: 6 November 2020 / Published: 10 November 2020
(This article belongs to the Special Issue Advanced Epoxy-Based Materials)
Epoxy resins are widely used in the composite industry due to their dimensional stability, chemical resistance, and thermo-mechanical properties. However, these thermoset resins have important drawbacks. (i) The vast majority of epoxy matrices are based on non-renewable fossil-derived materials, and (ii) the highly cross-linked molecular architecture hinders their reprocessing, repairing, and recycling. In this paper, those two aspects are addressed by combining novel biobased epoxy monomers derived from renewable resources and dynamic crosslinks. Vanillin (lignin) and phloroglucinol (sugar bioconversion) precursors have been used to develop bi- and tri-functional epoxy monomers, diglycidyl ether of vanillyl alcohol (DGEVA) and phloroglucinol triepoxy (PHTE) respectively. Additionally, reversible covalent bonds have been incorporated in the network by using an aromatic disulfide-based diamine hardener. Four epoxy matrices with different ratios of epoxy monomers (DGEVA/PHTE wt%: 100/0, 60/40, 40/60, and 0/100) were developed and fully characterized in terms of thermal and mechanical properties. We demonstrate that their performances are comparable to those of commonly used fossil fuel-based epoxy thermosets with additional advanced reprocessing functionalities. View Full-Text
Keywords: biobased epoxy; vitrimers; recyclable thermosets biobased epoxy; vitrimers; recyclable thermosets
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MDPI and ACS Style

Genua, A.; Montes, S.; Azcune, I.; Rekondo, A.; Malburet, S.; Daydé-Cazals, B.; Graillot, A. Build-To-Specification Vanillin and Phloroglucinol Derived Biobased Epoxy-Amine Vitrimers. Polymers 2020, 12, 2645. https://doi.org/10.3390/polym12112645

AMA Style

Genua A, Montes S, Azcune I, Rekondo A, Malburet S, Daydé-Cazals B, Graillot A. Build-To-Specification Vanillin and Phloroglucinol Derived Biobased Epoxy-Amine Vitrimers. Polymers. 2020; 12(11):2645. https://doi.org/10.3390/polym12112645

Chicago/Turabian Style

Genua, Aratz, Sarah Montes, Itxaso Azcune, Alaitz Rekondo, Samuel Malburet, Bénédicte Daydé-Cazals, and Alain Graillot. 2020. "Build-To-Specification Vanillin and Phloroglucinol Derived Biobased Epoxy-Amine Vitrimers" Polymers 12, no. 11: 2645. https://doi.org/10.3390/polym12112645

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