Volume 21, Issue 24 2500381
Research Article

Strong and Anti-Impact Multi-Functional Elastomer via Hierarchical Hydrogen Bonding Design

Zhongting Wang

Zhongting Wang

College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang, 110142 China

Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China

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Jing Yuan

Jing Yuan

Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China

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Xinghao Wang

Xinghao Wang

Department of Engineering Mechanics, Applied Mechanics Laboratory, Tsinghua University, Beijing, 100084 China

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Yizhi Zhang

Yizhi Zhang

Department of Engineering Mechanics, Applied Mechanics Laboratory, Tsinghua University, Beijing, 100084 China

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Zhiqi Wang

Zhiqi Wang

Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China

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Yuanxia Wang

Yuanxia Wang

College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang, 110142 China

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Baohua Guo

Baohua Guo

Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China

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Jiaxin Shi

Corresponding Author

Jiaxin Shi

Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China

E-mail: [email protected]; [email protected]

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Jun Xu

Corresponding Author

Jun Xu

Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084 China

E-mail: [email protected]; [email protected]

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First published: 30 April 2025

Abstract

Despite extensive research on enhancing the strength, toughness, or impact resistance of elastomers, materials that simultaneously integrate these properties remain elusive. In this work, a multifunctional elastomer is developed with high strength, superior toughness, and excellent impact resistance by designing multiscale structures. The synergistic coupling of strong and weak hydrogen bonds, rigid ring-flexible chain coordination, and precise control of hard/soft block ratio enabled the development of an optimized multiscale architecture tailored for superior performance, achieving a tensile strength of 84 MPa and a toughness of 450 MJ m⁻3, while maintaining excellent impact resistance across varying strain rates. Additionally, the incorporation of hindered urea dynamic covalent bonds and hydrogen bond-induced localized conjugation effect impart thermal adhesion and fluorescence capabilities, broadening the material's functional application scenarios. This multiscale molecular design strategy not only facilitates the tailoring of high-performance materials but also provides new insights into the structure-property relationships in elastomers.

Conflict of Interest

Jun Xu, Zhongting Wang, Jiaxin Shi, and Baohua Guo have a patent application.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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