A recyclable ionogel with high mechanical robustness based on covalent adaptable networks
Ionogels are an emerging class of soft materials for flexible electronics, with high ionic conductivity, low volatility, and mechanical stretchability. Recyclable ionogels are recently developed to address the sustainability crisis of current electronics, through the introduction of non-covalent bon...
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sg-ntu-dr.10356-1808102024-11-01T15:47:12Z A recyclable ionogel with high mechanical robustness based on covalent adaptable networks Fan, Xiaotong Luo, Yifei Li, Ke Wong, Yi Jing Wang, Cong Yeo, Jayven Chee Chuan Yang, Gaoliang Li, Jiaofu Loh, Xian Jun Li, Zibiao Chen, Xiaodong School of Materials Science and Engineering Institute of Materials Research and Engineering, A*STAR Max Planck-NTU Joint Lab for Artificial Senses Innovative Center for Flexible Devices Engineering Human–machine interfaces Strain sensors Ionogels are an emerging class of soft materials for flexible electronics, with high ionic conductivity, low volatility, and mechanical stretchability. Recyclable ionogels are recently developed to address the sustainability crisis of current electronics, through the introduction of non-covalent bonds. However, this strategy sacrifices mechanical robustness and chemical stability, severely diminishing the potential for practical application. Here, covalent adaptable networks (CANs) are incorporated into ionogels, where dynamic covalent crosslinks endow high strength (11.3 MPa tensile strength), stretchability (2396% elongation at break), elasticity (energy loss coefficient of 0.055 at 100% strain), and durability (5000 cycles of 150% strain). The reversible nature of CANs allows the ionogel to be closed-loop recyclable for up to ten times. Additionally, the ionogel is toughened by physical crosslinks between conducting ions and polymer networks, breaking the common dilemma in enhancing mechanical properties and electrical conductivity. The ionogel demonstrates robust strain sensing performance under harsh mechanical treatments and is applied for reconfigurable multimodal sensing based on its recyclability. This study provides insights into improving the mechanical and electrical properties of ionogels toward functionally reliable and environmentally sustainable bioelectronics. Submitted/Accepted version This project is supported by the Agency for Science, Technology and Research (A*STAR) under its RIE2025 Manufacturing, Trade and Connectivity (MTC) Programmatic Funding (Grant No. M22K9b0049 and M23L8b0049). 2024-10-28T07:28:40Z 2024-10-28T07:28:40Z 2024 Journal Article Fan, X., Luo, Y., Li, K., Wong, Y. J., Wang, C., Yeo, J. C. C., Yang, G., Li, J., Loh, X. J., Li, Z. & Chen, X. (2024). A recyclable ionogel with high mechanical robustness based on covalent adaptable networks. Advanced Materials, e2407398-. https://dx.doi.org/10.1002/adma.202407398 0935-9648 https://hdl.handle.net/10356/180810 10.1002/adma.202407398 39275986 2-s2.0-85204160133 e2407398 en M22K9b0049 M23L8b0049 Advanced Materials © 2024 Wiley-VCH GmbH. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1002/adma.202407398 application/pdf |
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Engineering Human–machine interfaces Strain sensors Fan, Xiaotong Luo, Yifei Li, Ke Wong, Yi Jing Wang, Cong Yeo, Jayven Chee Chuan Yang, Gaoliang Li, Jiaofu Loh, Xian Jun Li, Zibiao Chen, Xiaodong A recyclable ionogel with high mechanical robustness based on covalent adaptable networks |
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Ionogels are an emerging class of soft materials for flexible electronics, with high ionic conductivity, low volatility, and mechanical stretchability. Recyclable ionogels are recently developed to address the sustainability crisis of current electronics, through the introduction of non-covalent bonds. However, this strategy sacrifices mechanical robustness and chemical stability, severely diminishing the potential for practical application. Here, covalent adaptable networks (CANs) are incorporated into ionogels, where dynamic covalent crosslinks endow high strength (11.3 MPa tensile strength), stretchability (2396% elongation at break), elasticity (energy loss coefficient of 0.055 at 100% strain), and durability (5000 cycles of 150% strain). The reversible nature of CANs allows the ionogel to be closed-loop recyclable for up to ten times. Additionally, the ionogel is toughened by physical crosslinks between conducting ions and polymer networks, breaking the common dilemma in enhancing mechanical properties and electrical conductivity. The ionogel demonstrates robust strain sensing performance under harsh mechanical treatments and is applied for reconfigurable multimodal sensing based on its recyclability. This study provides insights into improving the mechanical and electrical properties of ionogels toward functionally reliable and environmentally sustainable bioelectronics. |
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School of Materials Science and Engineering |
author_facet |
School of Materials Science and Engineering Fan, Xiaotong Luo, Yifei Li, Ke Wong, Yi Jing Wang, Cong Yeo, Jayven Chee Chuan Yang, Gaoliang Li, Jiaofu Loh, Xian Jun Li, Zibiao Chen, Xiaodong |
format |
Article |
author |
Fan, Xiaotong Luo, Yifei Li, Ke Wong, Yi Jing Wang, Cong Yeo, Jayven Chee Chuan Yang, Gaoliang Li, Jiaofu Loh, Xian Jun Li, Zibiao Chen, Xiaodong |
author_sort |
Fan, Xiaotong |
title |
A recyclable ionogel with high mechanical robustness based on covalent adaptable networks |
title_short |
A recyclable ionogel with high mechanical robustness based on covalent adaptable networks |
title_full |
A recyclable ionogel with high mechanical robustness based on covalent adaptable networks |
title_fullStr |
A recyclable ionogel with high mechanical robustness based on covalent adaptable networks |
title_full_unstemmed |
A recyclable ionogel with high mechanical robustness based on covalent adaptable networks |
title_sort |
recyclable ionogel with high mechanical robustness based on covalent adaptable networks |
publishDate |
2024 |
url |
https://hdl.handle.net/10356/180810 |
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1814777797799837696 |