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Polymers Having Stable Radicals : Electrochemical and Chemical Behaviors of the Polymer Having Nitroxyls.
https://kougei.repo.nii.ac.jp/records/27
https://kougei.repo.nii.ac.jp/records/2707615d42-3cb0-4c95-a138-05dae8fef411
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00001511847.pdf (576.7 kB)
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| Item type | [ELS]紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2017-04-21 | |||||
| タイトル | ||||||
| タイトル | Polymers Having Stable Radicals : Electrochemical and Chemical Behaviors of the Polymer Having Nitroxyls. | |||||
| 言語 | en | |||||
| 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 | departmental bulletin paper | |||||
| 雑誌書誌ID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00159741 | |||||
| 論文名よみ | ||||||
| タイトル | Polymers Having Stable Radicals : Electrochemical and Chemical Behaviors of the Polymer Having Nitroxyls. | |||||
| 著者 |
黒崎, 壽一
× 黒崎, 壽一× TAKAHASHI, Osamu× OKAWARA, Makoto× KUROSAKI, Toshikazu× TAKAHASHI, Osamu× OKAWARA, Makoto |
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| 著者所属(英) | ||||||
| en | ||||||
| Department of Industrial Chemistry, Faculty of Engineering, Tokyo Institute of Polytechnics | ||||||
| 著者所属(英) | ||||||
| en | ||||||
| Ashigara Research Laboratory, Fuji Photo Film Co. Ltd. | ||||||
| 著者所属(英) | ||||||
| en | ||||||
| Research Laboratory of Resources Utilization, Tokyo Institute of Technology | ||||||
| 記事種別(日) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文 | |||||
| 記事種別(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Article | |||||
| 抄録(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | As a part of this series on polymers having stable radicals, evaluation of oxidation-reduction potentials by polarography and oxidative reactivities toward hydrazine and hydrazobenzene has been dealt with on nitroxyl stable radicals. Poly (4-methacryloyloxy-2, 2, 6, 6-tetramethylpiperidine-1-oxyl) (III) as a polymer having stable radicals, and its prototypes, 4-oxy-2, 2, 6, 6-tetramethylpiperidine-1-oxyl (I) and 4-isobutyroyloxy-2, 2, 6, 6-tetramethylpiperidine-1-oxyl (II), have been employed for purpose of the study. The electrode reactions of (I) in a range of pH. 8.0-10.1 in aqueous media were observed to be quasi-reversible and the reduction half-wave potentials (E_<1/2>) being between 0.120-0.200 V (vs. SCE) depending on pH.. In the other pH. regions, the reactions seemed to be irreversible and the reduction halfwave potentials depended uPon pH. as well. In addition, polarographic data in a non-aqueous medium ensured that all the nitroxyls (I), (II) and (III) might have the same redox potential values. The oxidation reactions, using (I), (II), and (III), on hydrazine and hydrazobenzene have been performed, of which extent was pursued spectrophotometrically. From the kinetics, it was elucidated that, (1) the reactions were bimolecula, (2) the rate determinant steps were in the first hydrogen abstraction and, (3) the reactions with hydrazine were reaction controlled (ΔE ; 11.2-11.3 Kcal/mol) while the reactions with hydrazobenzene were diffusion controlled (ΔE ; 5.9-3.9 Kcal/mol). Thermodynamic analysis indicated that the case of reaction with hydrazobenzene differed mechanistically whether the reactant was monomeric (II)or polymeric (III) (ΔS^‡ : -17.9 e. u., (II) ; -21.8 e.u., (III), at 20℃ in THF)and that a steric hindrance presumably took place in the latter. | |||||
| 書誌情報 |
東京工芸大学工学部紀要 en : The Academic Reports, the Faculty of Engineering, Tokyo Polytechnic University 巻 1, 号 1, p. 41-50, 発行日 1978 |
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| 表示順 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 5 | |||||
| アクセション番号 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | KJ00001511847 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 03876055 | |||||
