Dual Sacrificial Strategy Toward Tough and Recyclable CO 2 ‐Sourced Epoxy Thermosets

), exceeding conventional epoxy resins by >300%; and 3) rapid catalytic chemical recyclability (<4 h at 60 °C), with degradation products functioning as reusable hardeners. Practical validation via glass fiber-reinforced composites and electronic packaging confirms robust performance with full recyclability. This integrated methodology reconciles the historical trade-off between mechanical robustness and chemical recyclability in thermosets, establishing a viable pathway toward sustainable epoxy production.