Constructing High‐ T g and Ultra‐Strong Multifunctional Thermosets Enabled by Acid‐Base Ion Pairs

), and its outstanding performance is comparable to that of low-viscosity resins (Hexion and Toray RS-50) for structural applications. Second, the internal catalytic effect of ABIPs on ester exchange is unprecedented, which not only integrates the internal catalysis of tertiary amines and the effect of neighboring groups but also achieves a breakthrough. This built-in catalysis allows ultrafast surface reprocessing to achieve superhydrophobicity and improve the thermal conductivity of its composites. The integration of toughness, thermal stability, and reprocessability represents a breakthrough in epoxy thermoset design, offering a sustainable pathway for recyclable high-performance polymers.