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Hélène Nouailhas, Chahinez Aouf, Christine Le Guerneve, Sylvain Caillol, Bernard Boutevin and Hélène Fulcrand Synthesis and properties of biobased epoxy resins. part 1. Glycidylation of flavonoids by epichlorohydrin Journal of Polymer Science Part A: Polymer Chemistry 49

Version of Record online: 28 MAR 2011 | DOI: 10.1002/pola.24659

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The possibility to partially replace bisphenol A by catechin, a representative of the monomeric unit of condensed tannins, was evaluated. Biobased epoxy resins were formulated from the glycidyl ether of catechin (GEC). Their thermal properties, dynamic mechanical properties, and swelling percentage were investigated and compared to a commercial diglycidyl ether of bisphenol A (DGEBA). For instance, when incorporated into DGEBA resin, GEC did not modify the glass transition temperature but induced a decrease of the swelling percentage, suggesting that GEC enhanced crosslinking in the epoxy resin networks.

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