▎ 摘　　要

NOVELTY - Green reprocessing polymer hydrogel involves adding a biocatalytic substance to the hydrogel raw materials to prepare a hydrogel containing the biocatalytic substance, hydrogel being polymerized by dynamic covalent bonds or supramolecular interactions, and adding chemical fuel to the hydrogel containing biocatalytic substances. Biometabolism decomposes chemical fuels and drives the conversion of polymer hydrogels containing dynamic covalent bonds or supramolecular interactions to sols. After the gels become sols, functional materials are added and then converted to gels to achieve water coagulation. The reprocessing of the glue ensures the functionalization of polymer hydrogel. USE - Method for green reprocessing polymer hydrogel. ADVANTAGE - The method repeatedly modifies covalent adaptability and supramolecular polymer network in a green manner. The switching between the two states of sol and gel enables polymer hydrogels to be re-functionalized, thus generating multifunctional polymer materials, which can be used for flexible electronics, low-temperature strain sensors, magnetic actuators, and field of soft robotics.