Volume 20, Issue 43 2404231
Research Article

Lanternarene-Based Self-Sorting Double-Network Hydrogels for Flexible Strain Sensors

Zi-Qi Gao

Zi-Qi Gao

College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457 P. R. China

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Chuan-Hong Liu

Chuan-Hong Liu

College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457 P. R. China

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Shuang-Long Zhang

Shuang-Long Zhang

College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457 P. R. China

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Sheng-Hua Li

Corresponding Author

Sheng-Hua Li

Tianjin R&D Biotechnology Co., Ltd., Tianjin, 300456 P. R. China

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

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Li-Wei Gao

Li-Wei Gao

College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457 P. R. China

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Rui-Lin Chai

Rui-Lin Chai

College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457 P. R. China

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Tuo-Yu Zhou

Tuo-Yu Zhou

College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457 P. R. China

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Xu-Juan Ma

Xu-Juan Ma

College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457 P. R. China

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Xin Li

Xin Li

Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192 P. R. China

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Shibo Li

Shibo Li

Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300382 P. R. China

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Jin Zhao

Jin Zhao

College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457 P. R. China

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Qian Zhao

Corresponding Author

Qian Zhao

College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457 P. R. China

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

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First published: 29 June 2024
Citations: 15

Abstract

Conductive flexible hydrogels have attracted immense attentions recently due to their wide applications in wearable sensors. However, the poor mechanical properties of most conductive polymer limit their utilizations. Herein, a double network hydrogel is fabricated via a self-sorting process with cationic polyacrylamide as the first flexible network and the lantern[33]arene-based hydrogen organic framework nanofibers as the second rigid network. This hydrogel is endowed with good conductivity (0.25 S m−1) and mechanical properties, such as large Young's modulus (31.9 MPa), fracture elongation (487%) and toughness (6.97 MJ m−3). The stretchability of this hydrogel is greatly improved after the kirigami cutting, which makes it can be used as flexible strain sensor for monitoring human motions, such as bending of fingers, wrist and elbows. This study not only provides a valuable strategy for the construction of double network hydrogels by lanternarene, but also expands the application of the macrocycle hydrogels to flexible electronics.

Conflict of Interest

The authors declare no conflict of interest.

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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