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Three-Component Domains in the Fully Hydrated Nafion Membrane Characterized by Partial Scattering Function Analysis
https://repo.qst.go.jp/records/82818
https://repo.qst.go.jp/records/82818289f4010-fb45-49ee-b3c4-82c6814c3e5d
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-05-12 | |||||
| タイトル | ||||||
| タイトル | Three-Component Domains in the Fully Hydrated Nafion Membrane Characterized by Partial Scattering Function Analysis | |||||
| 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 |
Zhao, Yue
× Zhao, Yue× Kimio, Yoshimura× Toshinori, Motegi× Akihiro, Hiroki× Radulescu, Aurel× Yasunari, Maekawa× Zhao, Yue× Kimio, Yoshimura× Toshinori, Motegi× Akihiro, Hiroki× Yasunari, Maekawa |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A fully hydrated Nafion membrane is generally treated as a three-component system comprising the tetrafluoroethylene-like main-chain, the fluorinated side-chain ending with a sulfonic acid group, and absorbed water. We applied the contrast variation small-angle neutron scattering technique to decompose the scattering intensity profiles to partial scattering functions (PSFs) of each component in Nafion quantitatively. In the large-scale (>30 nm), structural heterogeneities were observed in the main- and side-chain domains but not in water domains. In the middle-scale (5 30 nm), bicontinuous-like structure of crystalline and amorphous phases with a mean separation distance of 11 nm was observed, as a result of the main-chain semicrystalline templating effect. In the small-scale (<5 nm), another bicontinuous-like structure exists in the amorphous phase with a mean separation distance of about 4 nm, indicating a well-connected water network responsible for the good membrane conductivity. Cross-term analysis of PSFs for two components suggested the location of each component in that the main-chain domains tend to phase-separate from either the side-chain or water domains, but the side-chain and water domains are closely attached through sulfonic acid groups. | |||||
| 書誌情報 |
Macromolecules 巻 54, 号 9, p. 4128-4135, 発行日 2021-05 |
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| 出版者 | ||||||
| 出版者 | ACS | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0024-9297 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1021/acs.macromol.1c00587 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1021/acs.macromol.1c00587 | |||||
