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Hydrogen-bonded fluorinated polyurethane ionogel elastomers with self-healing and hot-melt adhesion for strain
Changsheng Wang1, Senbin Chen1, Jintao Zhu1
1Key Laboratory of Materials Chemistry for Energy Conversion and Storage, Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China. senbin@hust.edu.cn.
Abstract:
Spider-silk-inspired fluorinated polyurethane ionogels containing 1-ethyl-3-methylimidazolium BIS(trifluoromethylsulfonyl)imide (EMIMTFSI) in a hydrogen-bonded, disulfide-containing network have been developed. The resulting elastomers demonstrate mechanical robustness, stretchability, self-healing, recyclability, hot-melt adhesion, and ionic conductivity, enabling stable resistive strain sensing for human-motion monitoring and Morse-code information encoding.
