Abstract:Biological tissues grow or evolve through a series of complicated processes of matter and energy internalization, which are highly challenging to mimic in synthetic materials. Herein, a delayed cross‐linking strategy is developed to program the reactivity of cross‐linking sites and make hydrogels evolvable. The polymer networks are constructed by combining polyvinyl alcohol (PVA) with a polyzwitterion comprising both cationic quaternary ammonium and anionic phenylboronic acid groups (PQBA). Shielding of phenyl… Show more
“…Furthermore, they facilitate self-evolution in the mechanical and flame-retardancy properties of the foam, all without necessitating any alterations to the foam formulation or the foaming process. 72 This evolutionary recycling strategy offers a novel approach for the high-value upcycling of plastics.…”
Polyurethane foams (PU), pivotal in modern life, confront fire hazards and environmental waste burdens. The current reliance of PU on potentially ecotoxic halogen/phosphorus-based flame retardants impedes large-scale material recycling. Here,...
“…Furthermore, they facilitate self-evolution in the mechanical and flame-retardancy properties of the foam, all without necessitating any alterations to the foam formulation or the foaming process. 72 This evolutionary recycling strategy offers a novel approach for the high-value upcycling of plastics.…”
Polyurethane foams (PU), pivotal in modern life, confront fire hazards and environmental waste burdens. The current reliance of PU on potentially ecotoxic halogen/phosphorus-based flame retardants impedes large-scale material recycling. Here,...
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