Microscopic Structures in Water-propylene Glycol Monoalkyl Ether Binary Mixtures as Clarified by NMR and Mass Spectrometry
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- OKAUCHI Yuji
- Performance Chemicals Research Laboratories, Kao Corporation
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- KOIKE Ryo
- Analytical Research Center, Kao Corporation
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- YAMAZAKI Yoshihiro
- Performance Chemicals Research Laboratories, Kao Corporation
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- TAMURA Shigeru
- Performance Chemicals Research Laboratories, Kao Corporation
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- WAKISAKA Akihiro
- National Institute of Advanced Industrial Science and Technology
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Determination was made of the microscopic structures of binary mixtures of water and amphiphile (propyleneglycol-monomethylether (MPG) or propyleneglycol-monopropylether (PPG)) based on the NMR relaxation time (T1) of water and mass spectra of clusters isolated from solutions. The ratio of hydrating to non-hydrating water was derived from T1 and indicated water in MPG-water mixtures to be present more easily in the amphiphile hydration layer than in PPG-water mixtures. Hydrogen-bonded self-association clusters of MPG and PPG could be found in the aqueous solutions by mass spectrometry, the data from which showed MPG self-association clusters to undergo hydrogen bonding with water more readily than PPG self-association clusters. The results of NMR and mass spectrometry were found to be closely correlated. Microscopic structures and intermolecular interactions in aqueous solutions were accurately clarified.<br>
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 55 (12), 647-652, 2006
公益社団法人 日本油化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679068289152
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- NII論文ID
- 130000055592
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- NII書誌ID
- AA11503337
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 8542042
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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