Self-healable hydrophobic polymer material having urethane linkages <i>via</i> a non-isocyanate route and dynamic Diels–Alder ‘click’ reaction
Sagar Kumar Raut, Prasanta Kumar Behera, Tuhin Subhra Pal, Prantik Mondal, Kinsuk Naskar, Nikhil K. Singha
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.
Topics & Concepts
IsocyanateMaleimideFuranPolymerClick chemistryDiels–Alder reactionPolymer chemistryAmine gas treatingMaterials scienceOrganic chemistryChemistryPolymer sciencePolyurethaneCatalysisPolymer composites and self-healingSynthetic Organic Chemistry Methodsbiodegradable polymer synthesis and properties