ID | 65161 |
フルテキストURL | |
著者 |
Watanabe, Takaichi
Department of Applied Chemistry, Graduate School of Natural Science, Okayama University
ORCID
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Oe, Emiho
Department of Applied Chemistry, Graduate School of Natural Science, Okayama University
Mizutani, Yuna
Department of Applied Chemistry, Graduate School of Natural Science, Okayama University
Ono, Tsutomu
Department of Applied Chemistry, Graduate School of Natural Science, Okayama University
ORCID
Kaken ID
publons
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抄録 | Ion gels have the potential to be used in a broad range of applications, such as in carbon dioxide separation membranes and soft electronics. However, their low mechanical strength limits their practical applications. In this study, we developed double-network (DN) ion gels composed of TEMPO-oxidized cellulose nanofibers with hydrophobic groups (TOCNF) and cross-linked poly[1-ethyl-3-vinylimidazolium bis(trifluoromethanesulfonyl)imide] (PC2im-TFSI) networks. The mechanical strength of the gel increased as the amount of TOCNF in the gels increased up to 6 wt%. Moreover, the fracture energy of the DN ion gels with 6 wt% TOCNF was found to be 19 times higher than that of the PC2im-TFSI single network (SN) ion gels. Cyclic stress-strain measurements of the DN gels showed that the loading energy on the gels dissipates owing to the destruction of the physically cross-linked TOCNF network in the gels. The DN ion gels also exhibited a high decomposition temperature of approximately 400 degrees C because of the thermal stability of all components. Additionally, the fracture energy of the TOCNF/poly(ionic liquid) (PIL) DN ion gel was two times higher than that of the silica nanoparticles/PIL DN ion gel developed in our previous study [Watanabe et al., Soft Matter, 2020, 16, 1572-1581]. This suggests that fiber-shaped nanomaterials are more effective than spherical nanomaterials in enhancing the mechanical properties of ion gels. These results show that TOCNF can be used to toughen PIL-based ion gels and hence broaden their applications.
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発行日 | 2023-03-23
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出版物タイトル |
Soft Matter
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巻 | 19巻
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号 | 15号
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出版者 | Royal Society of Chemistry
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開始ページ | 2745
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終了ページ | 2754
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ISSN | 1744-683X
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資料タイプ |
学術雑誌論文
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言語 |
英語
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OAI-PMH Set |
岡山大学
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著作権者 | © The Royal Society of Chemistry 2023
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論文のバージョン | publisher
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関連URL | isVersionOf https://doi.org/10.1039/d3sm00112a
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ライセンス | http://creativecommons.org/licenses/by/3.0/
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Citation | Soft Matter, 2023,19, 2745-2754
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助成機関名 |
Japan Society for the Promotion of Science
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助成番号 | JP20KK0325
JP21H04629
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