Abstract
AbstractTraditional chemically cross‐linked polymer materials may cause severe environmental pollution and economic losses due to the difficulty of recycling. Vitrimers containing reversible dynamic covalent bonds are processable, recyclable, and self‐healing. In this article, a bio‐based epoxy resin curing agent is synthesized by hydrolysis using cellulose as raw material. The results show that the epoxy vitrimers with the best ratio have a lower topological transition temperature and a fast relaxation time at 140 °C. After soaking in solvent for 90 days, the gel content of the material is greater than 81%. The glass transition temperature of the sample measured by differential scanning calorimetry （DSC) is 83 °C. It also has a high initial decomposition temperature (350 °C) with good flexibility and solvent resistance, showing its good performance as a coating paint.
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