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  1. 080 繊維学部
  2. 0801 学術論文

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/10091/16035
35f4a8bc-dc3a-41e5-bb79-18d9ae3120c2
名前 / ファイル ライセンス アクション
53_341(1).pdf 53_341(1).pdf (319.1 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2012-10-11
タイトル
言語 ja
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
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
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

WEKO 40819

奈倉, 正宣

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後藤, 康夫

× 後藤, 康夫

WEKO 40820

後藤, 康夫

Search repository
大越, 豊

× 大越, 豊

WEKO 40821

大越, 豊

Search repository
信州大学研究者総覧へのリンク
氏名 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
氏名 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
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
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
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
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