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The composite materials market is rapidly expanding, based on the excellent performance of epoxy resin composites. However, this aromatic thermoset, in addition to being of fossil origin, cannot be recycled. Lignin, the most abundant aromatic biopolymer available on earth, is a promising alternative. The use of lignin in materials is very limited due to its complexity and unsuitable properties. The ReCoLV project therefore aims to develop new 100% biosourced matrices containing high levels of lignin through clean, efficient and affordable modification of lignin with biosourced reagents. The cross-linking of this matrix providing durability and excellent mechanical properties will be ensured by an innovative vitrimer network of dynamic covalent bonds to obtain recyclable and repairable composite materials.
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