文献类型：期刊文献

英文题名：A Rational Design of Bio-Derived Disulfide CANs for Wearable Capacitive Pressure Sensor

作者：Yang, Ding[1,2];Zhao, Kai[1,2];Yang, Rulin[1,2];Zhou, Shang-Wu[1,2];Chen, Meng[1,2];Tian, He[1,2];Qu, Da-Hui[1,2]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn, Inst Fine Chem,Key Lab Adv Mat,Feringa Nobel Prize, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Joint Int Res Lab Precis Chem & Mol Engn,Inst Fine, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2024

卷号：36

期号：30

外文期刊名：ADVANCED MATERIALS

收录：;EI(收录号：20242116114515);WOS:【SCI-EXPANDED(收录号:WOS:001226446900001)】；

基金：This work was supported by the National Natural Science Foundation of China (grant nos. 22105072, 22025503, 22220102004), Shanghai Municipal Science and Technology Major Project (grant no. 2018SHZDZX03), the Innovation Program of Shanghai Municipal Education Commission (2023ZKZD40), the Fundamental Research Funds for the Central Universities, the Programme of Introducing Talents of Discipline to Universities (grant no. B16017), Science and Technology Commission of Shanghai Municipality (grant no. 21JC1401700), and the Starry Night Science Fund of Zhejiang University Shanghai Institute for Advanced Study (grant no. SN-ZJU-SIAS-006). 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：biobased; closed-loop recycling; disulfide CANs; self-healable; wearable sensor

摘要：Classic approaches to integrate flexible capacitive sensor performance are to on-demand microstructuring dielectric layers and to adjust dielectric material compositions via the introduction of insoluble carbon additives (to increase sensitivity) or dynamic interactions (to achieve self-healing). However, the sensor's enhanced performances often come with increased material complexity, discouraging its circular economy. Herein, a new intrinsic self-healable, closed-loop recyclable dielectric layer material, a fully nature-derived dynamic covalent poly(disulfide) decorated with rich H bonding and metal-catechol complexations is introduced. The polymer network possesses a mechanically ductile character with an Arrhenius-type temperature-dependent viscoelasticity. The assembled capacitive pressure sensor is able to achieve a sensitivity of up to 9.26 kPa-1, fast response/recovery time of 32/24 ms, and can deliver consistent signals of continuous consecutive cycles even after being self-healed or closed-loop recycled for real-time detection of human motions. This is expected to be of high interest for current capacitive sensing research to move toward a life-like, high performance, and circular economy direction. It is a proof-of-concept work of an elastic dynamic adaptive polymer(disulfide) decorated with H bonds and metal-catechol complexations to construct into a sandwich-like, self-healable, closed-loop recyclable capacitive sensor with ultra-high sensitivity, decent stability, and the capability of monitoring various human motions on a real-time basis. image