State Analysis of Water in Polyether-Polyol by High-Frequency Spectroscopy.
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- TAKEI Takaya
- Kanagawa University, Faculty of Science
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- KAGESHIMA Kazuki
- Kanagawa University, Faculty of Science
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- TOMITA Megumi
- Kanagawa University, Faculty of Science
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- SUGITANI Yoshinori
- Kanagawa University, Faculty of Science
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- MIN Kyon Hun
- Asahi Glass Co. Ltd., Research Center
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- MATSUMOTO Kiyoshi
- Asahi Glass Co. Ltd., Research Center
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Abstract
Water molecules in polyether-polyol have been analyzed by high-frequency spectroscopy. It has been inferred that there exist two types of H2O in polyether-polyol. The first type are those which coordinate directly to the OH group at the end of the polyol chain. The frequency of the maximum absorption peak of these water molecules do not shift with increasing content of H2O in the high-frequency spectra; these may be referred to as non-freezable water. The second type are those which bond to the EO chain in the polyol. Excess water molecules which exist near or in the neighborhood of these H2O should also be included in the second type one. The second type may be referred to as freezable water. These show a frequency shift which reflects the degree of restraint of H2O in the polyol.
Journal
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- Analytical Sciences
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Analytical Sciences 15 (11), 1083-1086, 1999
The Japan Society for Analytical Chemistry
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Details 詳細情報について
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- CRID
- 1390282679229291136
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- NII Article ID
- 130004439980
- 10004708251
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- NII Book ID
- AA10500785
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- COI
- 1:CAS:528:DyaK1MXnsVGhtLw%3D
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- ISSN
- 13482246
- 09106340
- http://id.crossref.org/issn/09106340
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- NDL BIB ID
- 4907918
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed