Abstract
Conventional synthesis of polyurethane (PU) often involves the use of inherently toxic and overly moisture-sensitive isocyanates. Herein, we report the preparation of a self-healable hydrophobic polymer network having urethane linkages via a facile non-isocyanate route based on carbonylimidazole-amine reaction and dynamic Diels-Alder (DA) 'click' reaction based on furan-maleimide cycloaddition. This isocyanate-free DA 'clicked' polymer material showed excellent self-healing and hydrophobic characteristics.
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