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Elucidation of the morphology of the hydrocarbon multi-block copolymer electrolyte membranes for proton exchange fuel cells
https://repo.qst.go.jp/records/47866
https://repo.qst.go.jp/records/47866ab48fc1e-5273-48ad-b082-b724fea52ba1
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-04-27 | |||||
| タイトル | ||||||
| タイトル | Elucidation of the morphology of the hydrocarbon multi-block copolymer electrolyte membranes for proton exchange fuel cells | |||||
| 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× Yoshida, Miru× Oshima, Tatsuya× Koizumi, Satoshi× Rikukawa, Masahiro× Szekely, Noemi× Radulescu, Aurel× Richter, Dieter× ザオ ユエ |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We investigated the structure and the swelling behavior of two synthesized hydrocarbon polymer electrolyte membranes, made of multiblock copolymer poly(sulphonate phenylene)-b-poly(arylene ether ketone) with different block ratios, by using small-angle neutron scattering technique. A scattering maximum (ionomer peak) at high-q range (0.1 < q < 0.3 Å−1) is shown commonly in both dry and wet states, with q being the magnitude of the scattering vector, while it shifts towards low-q region in the wet state due to the swelling of the ionomer domains with water. The swelling effect also results to a second scattering maximum in the middle-q range (0.01 < q < 0.03 Å−1) because of the water-induced microphase separation. This swelling behavior was confirmed in various water mixtures of normal water and deuterated water with different volume ratios (contrast variation method). The morphology of the wet membranes was analyzed in terms of Hard-Sphere model with Percus–Yervick interference interactions. Our analysis indicated that (i) the hydrated microdomains in the membranes are interconnected, which is the key point to promote the proton conductivity; (ii) the water-induced microphase separation structure and the amphiphilicity of the matrix for embedding the ionomer domains are closely related to the chemical structure of the polymer. | |||||
| 書誌情報 |
polymer 巻 86, p. 157-167, 発行日 2017-02 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0032-3861 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.polymer.2016.01.061 | |||||
