Effect of Addition and Molecular Size of Triglyceride Oils on Phase Behavior and Surfactant Self-Assemblies
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- ARAMAKI Kenji
- Graduate School of Environment and Information Sciences, Yokohama National University
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- KHALID Hossain Md.
- Graduate School of Environment and Information Sciences, Yokohama National University
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The cloud temperature of C12EO8 aqueous solution decreases by solubilizing triglyceride oils (1,2,3-trihexanoylglycerol (THG), 1,2,3-trioctanoylglycerol (TOG) and 1,2,3-tridecanoylglycerol (TDG)). The reduction of cloud temperature is larger with the oil having shorter alkyl chains. In the water/C12EO8 system, a micellar, a hexagonal, a bicontinuous cubic and a lamellar phases are successively formed with increasing surfactant concentration at 25°C. A discontinuous cubic phase is formed by adding TOG to the aqueous C12EO8 system. SAXS measurement was performed on the discontinuous cubic, hexagonal and lamellar phases and molecular parameters such as effective cross sectional area per surfactant molecule, radius of micelle for the discontinuous cubic and the hexagonal phases, half-thickness of bilayer of the lamellar phase were obtained. The changes in the molecular parameters by increasing TOG content suggest that most of the oil molecules are solubilized in the core of surfactant aggregates. Thermal stability of the discontinuous cubic phase increases. The amount of solubilized oil in the discontinuous cubic phase increases by increasing temperature and decreasing oil molecular weight.<br>
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 53 (11), 557-563, 2004
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
- 1390001204091084416
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- NII論文ID
- 130000060662
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- NII書誌ID
- AA11503337
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- COI
- 1:CAS:528:DC%2BD2cXptVKlt74%3D
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 7115100
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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
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- KAKEN
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- 抄録ライセンスフラグ
- 使用不可