Cation‐π Dynamic Cross‐Linking Enabled High‐Performance PVA Films With Synchronous Strength‐Toughness Enhancement, Self‐Healing, and Recyclability
Poly (vinyl alcohol) (PVA), a representative biodegradable and water‐soluble polymer, suffers from high crystallinity, a strength‑toughness trade‑off, and poor thermal stability arising from strong interchain hydrogen bonding. Conventional modification strategies fail to simultaneously achieve synergistic enhancement o...