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Hydrophobic Effect on Alkaline Stability of Graft Chains in Ammonium-type Anion Exchange Membranes Prepared by Radiation-Induced Graft Polymerization
https://repo.qst.go.jp/records/84561
https://repo.qst.go.jp/records/84561a53fa642-7400-4655-a60b-67dec526246c
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-11-17 | |||||
| タイトル | ||||||
| タイトル | Hydrophobic Effect on Alkaline Stability of Graft Chains in Ammonium-type Anion Exchange Membranes Prepared by Radiation-Induced Graft Polymerization | |||||
| 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× Zhao, Yue× Kimio, Yoshimura× Radulescu, Aurel× Kenji, Ohwada× Yasunari, Maekawa× Takashi, Hamada× Zhao, Yue× Kimio, Yoshimura× Kenji, Ohwada× Yasunari, Maekawa |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Vinylbenzyltrimethylammonium hydroxide (VBA) and styrene (St) cografted poly(ethylene-co-tetrafluoroethylene) anion exchange membranes (VBA/St-AEM) were prepared by the radiation-induced graft polymerization of chloromethylstyrene and St and sequential quaternization and anion exchange reactions. Increasing the St content in the grafts to 63% resulted in a gradual 21% and 34% decrease in the conductivity and water uptake, respectively, compared to those in the VBA-homo-grafted AEM. AEMs with a higher St content (81%) showed a 9% and 18% higher conductivity and water uptake, respectively. Small-angle neutron scattering showed that the sudden growth of “water puddles” consisting of waterrich nano-domains dispersed randomly in phase-separated hydrophilic ion channels enhanced the conductivity and water uptake. In the alkaline durability test of VBA/St-AEM in 1 M potassium hydroxide at 80°C for 720 h, the loss of the conductivity was suppressed from 43% to 8%, when the St contents in the grafts were increased from 0% to 63%. |
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| 書誌情報 |
ChemistrySelect 巻 6, 号 33, p. 8879-8888, 発行日 2021-09 |
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| 出版者 | ||||||
| 出版者 | Wiley | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2365-6549 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1002/slct.202102045 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/slct.202102045 | |||||
