A stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents
Abstract Hydrogels are a widely used ionic conductor in on-skin electronic and iontronic devices. However, hydrogels dehydrate in the open air and freeze at low temperatures, limiting their real applications when they are attached on skin or exposed to low temperatures. Polymer-ionic liquid gels can...
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Nature Portfolio
2021
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oai:doaj.org-article:93f93701052d4e9f832aa6b209a207612021-12-02T16:35:01ZA stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents10.1038/s41528-021-00118-82397-4621https://doaj.org/article/93f93701052d4e9f832aa6b209a207612021-08-01T00:00:00Zhttps://doi.org/10.1038/s41528-021-00118-8https://doaj.org/toc/2397-4621Abstract Hydrogels are a widely used ionic conductor in on-skin electronic and iontronic devices. However, hydrogels dehydrate in the open air and freeze at low temperatures, limiting their real applications when they are attached on skin or exposed to low temperatures. Polymer-ionic liquid gels can overcome these two obstacles, but synthetic ionic liquids are expensive and toxic. In this work, we present an ionic conductor based on polyacrylic acid (PAAc) and deep eutectic solvents (DESs) that well addresses the aforementioned challenges. We polymerize acrylic acid in DESs to get the PAAc–DES gel, which exhibits excellent stretchability (> 1000%), high electrical conductivity (1.26 mS cm−1), high adhesion to the skin (~ 100 N m−1), as well as good anti-drying and anti-freezing properties. We also demonstrate that the PAAc-DES gel can be used as an on-skin electrode to record the surface electromyographic signal with high signal quality, or as a transparent stretchable electrode in iontronic devices that can work at –20 °C. We believe that the PAAc–DES gels are an ideal candidate as epidermal electrodes or transparent stretchable electrodes.Gang LiZhihao DengMinkun CaiKaixi HuangMengxue GuoPing ZhangXingyu HouYuan ZhangYueji WangYan WangXiang WuChuan Fei GuoNature PortfolioarticleElectronicsTK7800-8360Materials of engineering and construction. Mechanics of materialsTA401-492ENnpj Flexible Electronics, Vol 5, Iss 1, Pp 1-8 (2021) |
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DOAJ |
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DOAJ |
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EN |
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Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492 |
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Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492 Gang Li Zhihao Deng Minkun Cai Kaixi Huang Mengxue Guo Ping Zhang Xingyu Hou Yuan Zhang Yueji Wang Yan Wang Xiang Wu Chuan Fei Guo A stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents |
| description |
Abstract Hydrogels are a widely used ionic conductor in on-skin electronic and iontronic devices. However, hydrogels dehydrate in the open air and freeze at low temperatures, limiting their real applications when they are attached on skin or exposed to low temperatures. Polymer-ionic liquid gels can overcome these two obstacles, but synthetic ionic liquids are expensive and toxic. In this work, we present an ionic conductor based on polyacrylic acid (PAAc) and deep eutectic solvents (DESs) that well addresses the aforementioned challenges. We polymerize acrylic acid in DESs to get the PAAc–DES gel, which exhibits excellent stretchability (> 1000%), high electrical conductivity (1.26 mS cm−1), high adhesion to the skin (~ 100 N m−1), as well as good anti-drying and anti-freezing properties. We also demonstrate that the PAAc-DES gel can be used as an on-skin electrode to record the surface electromyographic signal with high signal quality, or as a transparent stretchable electrode in iontronic devices that can work at –20 °C. We believe that the PAAc–DES gels are an ideal candidate as epidermal electrodes or transparent stretchable electrodes. |
| format |
article |
| author |
Gang Li Zhihao Deng Minkun Cai Kaixi Huang Mengxue Guo Ping Zhang Xingyu Hou Yuan Zhang Yueji Wang Yan Wang Xiang Wu Chuan Fei Guo |
| author_facet |
Gang Li Zhihao Deng Minkun Cai Kaixi Huang Mengxue Guo Ping Zhang Xingyu Hou Yuan Zhang Yueji Wang Yan Wang Xiang Wu Chuan Fei Guo |
| author_sort |
Gang Li |
| title |
A stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents |
| title_short |
A stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents |
| title_full |
A stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents |
| title_fullStr |
A stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents |
| title_full_unstemmed |
A stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents |
| title_sort |
stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/93f93701052d4e9f832aa6b209a20761 |
| work_keys_str_mv |
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