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Synthesis and Characterization of 4-Vinylimidazolium/Styrene-Cografted Anion-Conducting Electrolyte Membranes
https://repo.qst.go.jp/records/84581
https://repo.qst.go.jp/records/84581fcdcb40d-ecfc-4527-ab14-91454cecf388
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-09-29 | |||||
タイトル | ||||||
タイトル | Synthesis and Characterization of 4-Vinylimidazolium/Styrene-Cografted Anion-Conducting Electrolyte Membranes | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Takashi, Hamada
× Takashi, Hamada× Kimio, Yoshimura× Takeuchi, Kota× Watanabe, Shun× Zhao, Yue× Akihiro, Hiroki× Hagiwara, Tokio× Hideyuki, Shishitani× Yamaguchi, Susumu× Tanaka, Hirohisa× Radulescu, Aurel× Ohwada, Kenji× Yasunari, Maekawa× Takashi, Hamada× Kimio, Yoshimura× Zhao, Yue× Akihiro, Hiroki× Hideyuki, Shishitani× Yasunari, Maekawa |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The β-hydrogen-free imidazole monomer, 2-methyl-N-methyl-4(5)-vinylimidazole (2M4VIm), is synthesized to prepare anion exchange membranes (AEMs). The radiation-induced graft polymerization of 2M4VIm and styrene is performed in poly(ethylene-co-tetrafluoroethylene), followed by N-alkylation and ion exchange reactions to prepare 4-vinylimidazolium-containing AEM (2M4VIm/St-AEM). AEMs that have a 6/4 2M4VIm/St molar ratio and 1.7 mmol g−1 ion exchange capacity (IEC) result in 75 mS cm−1 conductivity and 60% water uptake at room temperature in water, demonstrating enhanced values compared to previously reported 2-methyl-N-vinylimidazolium-containing AEMs (2MNVIm/St-AEM) that have a similar comonomer ratio and IEC. The small-angle neutron scattering measurements of dry and swollen 2M4VIm/St-AEM reveal hydrophilic/hydrophobic two-phase separation, as observed for 2MNVIm/St-AEM with a similar Im/St composition. 2M4VIm/St-AEMs exhibit higher alkaline stability in 1 m KOH at 80 °C at an early stage owing to the suppression of imidazolium β-elimination but lower long-term stability than that of 2MNVIm/St-AEM due to the ring-opening reaction of the imidazolium group due to its outward orientation from the graft main chain. | |||||
書誌情報 |
Macromolecular Chemistry and Physics 巻 222, 号 11, p. 2100028, 発行日 2021-06 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1022-1352 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1002/macp.202100028 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://onlinelibrary.wiley.com/doi/abs/10.1002/macp.202100028 |