Mechanically Robust and Underwater-Stable Hydrogels via Synergistic Molecular Locking and Topological Entanglement.
Highly entangled hydrogels typically suffer from swelling-induced dilution of chain entanglements in aqueous environments, leading to compromised energy dissipation and mechanical integrity. Herein, we report an underwater-stable and highly entangled poly(acrylamide-acrylic acid) hydrogel coordinated with Fe3+ (EH-P(AM...