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Microphase-separated structures of ion gels consisting of ABA-type block copolymers and an ionic liquid: A key to escape from the trade-off between mechanical and transport properties
http://hdl.handle.net/10131/00013534
http://hdl.handle.net/10131/000135343ef7f751-ca86-4511-b67d-9753061835d4
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Polymer_final.pdf (974.2 kB)
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Polymer_SI_final.pdf (1.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-01-07 | |||||
タイトル | ||||||
タイトル | Microphase-separated structures of ion gels consisting of ABA-type block copolymers and an ionic liquid: A key to escape from the trade-off between mechanical and transport properties | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Mizuno, Haruna
× Mizuno, Haruna× Hashimoto, Kei× Tamatea, Ryota× Kokubo, Hisashi× Ueno, Kazuhide× Li, Xiang× Watanabe, Masayoshi |
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著者所属 | ||||||
Department of Chemistry and Life Science, Yokohama National University | ||||||
著者所属 | ||||||
Department of Chemistry and Life Science, Yokohama National University and Institute of Advanced Sciences, Yokohama National University | ||||||
著者所属 | ||||||
Department of Chemistry and Life Science, Yokohama National University and Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science | ||||||
著者所属 | ||||||
Department of Chemistry and Life Science, Yokohama National University | ||||||
著者所属 | ||||||
Department of Chemistry and Life Science, Yokohama National University | ||||||
著者所属 | ||||||
Institute for Solid State Physics, The University of Tokyo | ||||||
著者所属 | ||||||
Department of Chemistry and Life Science, Yokohama National University and Institute of Advanced Sciences, Yokohama National University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Upon combination of an ionic liquid (IL) with an amphiphilic ABA-type triblock copolymer, the insoluble A blocks aggregate to form mechanical frameworks and the soluble B blocks form ion-transport paths by incorporating the IL. Consequently, a self-standing ion gel, exhibiting the characteristic high ionic conductivity of ILs, can be obtained. In this study, we investigated the effect of microstructures formed by the block copolymer (spherical, cylindrical, gyroid, and lamellar structures) on the ionic conductivity and mechanical properties of the ion gel by focusing on the microstructures. As a result, an ion gel that formed an isotropic bicontinuous structure was successfully obtained via a heat-induced order-order transition. The structure was maintained even at room temperature, and the ion gel having a bicontinuous structure exhibited favorable mechanical properties (storage modulus, G' ~ 1.0 MPa) and good ionic conductivity (σ ~ 0.1 mS cm−1). In contrast, the ion gels having anisotropic structures (cylindrical structure) exhibited weaker mechanical properties and lower ionic conductivity. The characteristics of bicontinuous structures may be the key to resolving the trade-off between mechanical and transport properties of electrolyte materials for electrochemical devices. | |||||
書誌情報 |
Polymer 巻 206, p. 122849, 発行日 2020-08-07 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00323861 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00776983 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1016/j.polymer.2020.122849 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | Elsevier | |||||
関係URI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polymer.2020.122849 | |||||
関連名称 | https://doi.org/10.1016/j.polymer.2020.122849 |