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反復凍結解凍ポリビニルアルコール含水ゲル中の水の状態と微細構造
http://hdl.handle.net/10091/16035
http://hdl.handle.net/10091/1603535f4a8bc-dc3a-41e5-bb79-18d9ae3120c2
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
53_341(1).pdf (319.1 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2012-10-11 | |||||
| タイトル | ||||||
| タイトル | 反復凍結解凍ポリビニルアルコール含水ゲル中の水の状態と微細構造 | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.2115/fiber.53.8_341 | |||||
| 関連名称 | 10.2115/fiber.53.8_341 | |||||
| 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 | |||||
| その他（別言語等）のタイトル | ||||||
| その他のタイトル | Fine structures and states of water in poly(vinyl alcohol) hydrogels prepared by repeated freezing and thawing | |||||
| 著者 |
奈倉, 正宣
× 奈倉, 正宣× 後藤, 康夫× 大越, 豊 |
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| 信州大学研究者総覧へのリンク | ||||||
| 表示名 | 後藤, 康夫 | |||||
| URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.uVDmjekV.html | |||||
| 信州大学研究者総覧へのリンク | ||||||
| 表示名 | 大越, 豊 | |||||
| URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.jUkejekV.html | |||||
| 出版者 | ||||||
| 出版者 | 繊維学会 | |||||
| 引用 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 繊維学会誌. 53(8):341-344 (1997) | |||||
| 書誌情報 |
繊維学会誌 巻 53, 号 8, p. 341-344, 発行日 1997-08 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Investigations have been made into the relationship between structure and states of water in unfrozen poly (vinyl alcohol) (PVA) hydrogels prepared by repeated freezing and thawing of aqueous solution with various PVA concentrations. The states of water were investigated by using a pulsed nuclear magnetic resonance spectroscopy. Every unfrozen PVA hydrogel gave only one spin-lattice relaxation time (T-1) value. T-1 of all unfrozen hydrogels were smaller than that of free water and decreased with increasing PVA concentration. These mean that the molecular motion of water in the unfrozen PVA hydrogels are more restrained than those of the free water molecules, and the mobility decreases with increasing PVA concentration. The activation energy, which was estimated from Ahrrenius type plot, for the motion of water molecules of all unfrozen PVA hydrogels was smaller than that of free water and decreased with increasing PVA concentration. These mean that hydrogen bonding force between water molecules of all unfrozen PVA hydrogels are smaller than that of free water and decreases with increasing PVA concentration. It was clarified by comparing with the results of fine structure of the unfrozen PVA hydrogels which have been studied in a previous paper that with increasing number of PVA chain in the uncrystallized region of unfrozen PVA hydrogels, the restrain of mobility of water molecules increased and hydrogen bonding force weakened. | |||||
| 資源タイプ（コンテンツの種類） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Article | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0037-9875 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00131651 | |||||
| 権利 | ||||||
| 権利情報 | © 1997 繊維学会 | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| WoS | ||||||
| 表示名 | Web of Science | |||||
| URL | http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=A1997YA53100009 | |||||
