Heat‐ or Water‐Driven Malleability in a Highly Recyclable Covalent Network Polymer

A catalyst-free malleable network polymer that can be reprocessed by application of either water or heat is prepared through imine chemistry. This material is recycled from a fine powder to a coherent solid with >100% recycling efficiency through several generations. It is also reprocessed at ambient temperature using only water, thus potentially leading to energy-neutral green processing of the material.