文献类型：期刊文献

英文题名：A Reprocessable Dynamic Disulfide Hydrogel for Capacitive Pressure Sensors

作者：Yang, Ding[1];Yang, Rulin[1];Liu, Fang-Yu[1];Zhao, Jiahui[1];Qu, Da-Hui[1];Chen, Meng[1]

机构：[1]East China Univ Sci & Technol, Inst Fine Chem, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem,Key Lab, 130 Meilong Rd, Shanghai, Peoples R China

年份：2025

卷号：31

期号：31

外文期刊名：CHEMISTRY-A EUROPEAN JOURNAL

收录：;EI(收录号：20251918362886);WOS:【SCI-EXPANDED(收录号:WOS:001479877100001)】；

基金：This work was supported by the National Natural Science Foundation of China (22025503, 22220102004), Science and Technology Commission of Shanghai Municipality (24DX1400200), the Innovation Program of Shanghai Municipal Education Commission (2023ZKZD40), the Programme of Introducing Talents of Discipline to Universities (grant no. B16017) and the Fundamental Research Funds for the Central Universities. The authors thank the Research Center of Analysis and Test of East China University of Science and Technology for help with the material characterization.

语种：英文

外文关键词：closed-loop recyclable; dynamic covalent interaction; elastic poly(disulfide)s; functional hydrogel; high-functional pressure sensor

摘要：With the rapidly growing demand for wearable sensor devices across a range of applications, sensing technology has been rapidly advancing. However, challenges such as limited sensitivity, device instability, and trade-offs between performance and recyclability remain unaddressed. We report the facile fabrication of a recyclable dynamic disulfide hydrogel from an amphiphilic polyethylene-glycol-based thioctic acid derivative with hydrophilic/hydrophobic characteristics. The hydrogel demonstrates decent thermal stability and adequate mechanical properties, including elasticity, compressibility, and reprocessing capability. It is also integrated into a microstructured capacitive sensor, demonstrating a sensitivity of up to 1.14 kPa-1, rapid response times within 20 ms, and robust functioning stability up to 400 consecutive cycles. These properties make it particularly intriguing for the sustainable development of high-performance wearable sensors.