articleAngewandte Chemie International EditionMar 11, 2025BRONZE OA

Ultrarobust, Stretchable, and Highly Elastic Supramolecular Elastomer with Hydrogen‐Bond Interactions via sp 2 Hybridized Boron‐Urethane Bonds

Nanjing Forestry University · Institute of Chemical Industry of Forest Products · +1 more institution

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Abstract

Abstract Elastomers are omnipresent in everyday life and industry, yet the development of an elastomer with both superb stress and toughness presents a prodigious challenge. In this report, a high‐strength, tough, and high‐elastic elastomer derived from sp 2 hybrid orbitals of phenylboronic acid was designed. The spatial conformation of network becomes significantly more compact due to the sp 2 hybridization of boron. This enhances supramolecular hydrogen bonding interactions, resulting in a marked improvement in the material's mechanical properties. Notably, the hydrogen bonding energy in the polyurethane chain segments enhanced by 37%. The robust hydrogen bonding imparts the elastomer with super high true…

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