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Updated: Nov 22, 2025

The Preparation and Properties of Thermo-reversibly Cross-linked Rubber Via Diels-Alder Chemistry
Published on: August 25, 2016
Self-healable hydrophobic polymer material having urethane linkages via a non-isocyanate route and dynamic
Sagar Kumar Raut1, Prasanta Kumar Behera1, Tuhin Subhra Pal1
1Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India. nks8888@yahoo.com.
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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