Cover Feature: Dynamic Covalent Polymeric Foams: En Route to a Sustainable Lightness (ChemSusChem 9/2026)

Polymer foams are widely used and versatile materials but have limited end-of-life options, posing serious environmental challenges. Recent research has shown that a promising route to answer this issue lies in introducing reversible bonds during synthesis or via post-consumer modification, which upon foaming yields dynamic covalent polymer foams. These dynamic foams are high performance materials that can be reshaped and reprocessed, thus bridging the gap between performance and sustainability. More information can be found in the Review by P. Verge and co-workers (DOI: 10.1002/cssc.202502478).