2003年7月
Effects of cononsolvency on gelation of poly(vinyl alcohol) in mixed solvents of dimethyl sulfoxide and water
POLYMER
- ,
- ,
- ,
- 巻
- 44
- 号
- 15
- 開始ページ
- 4075
- 終了ページ
- 4078
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/S0032-3861(03)00390-2
- 出版者・発行元
- ELSEVIER SCI LTD
We studied the rates of gelation and phase separation of poly(vinyl alcohol) (PVA) solutions in mixtures of dimethyl sulfoxide (DMSO) and water at 25 degreesC and found that both the rates show a maximum at a volume fraction of DMSO phi(DMSO) = 0.60 while gelation was not observed either in pure DMSO or pure water, suggesting that water-DMSO is a cononsolvent system for PVA. On the basis of the data by Cowie [Can J Chem 36 (1961) 2240] we concluded that the 1:2 stable complex between one DMSO molecule and two water molecules is the main cause of this cononsolvency. (C) 2003 Elsevier Science Ltd. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/S0032-3861(03)00390-2
- ISSN : 0032-3861
- J-Global ID : 200902200649086380
- Web of Science ID : WOS:000183846100001