Surface Freezing of Cetyltrimethylammonium Chloride-Hexadecanol Mixed Adsorbed Film at Dodecane-Water Interface

The surface freezing transition of a mixed adsorbed film containing cetyltrimethylammonium chloride (CTAC) and n-hexadecanol (C16OH) was utilized at the dodecane-water interface to control the stability of oil-in-water (O/W) emulsions. The corresponding surface frozen and surface liquid mixed adsorb...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 36(2020), 48 vom: 08. Dez., Seite 14811-14818
1. Verfasser: Sakamoto, Hiromu (VerfasserIn)
Weitere Verfasser: Masunaga, Akihiro, Takiue, Takanori, Tanida, Hajime, Uruga, Tomoya, Nitta, Kiyofumi, Prause, Albert, Gradzielski, Michael, Matsubara, Hiroki
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a The surface freezing transition of a mixed adsorbed film containing cetyltrimethylammonium chloride (CTAC) and n-hexadecanol (C16OH) was utilized at the dodecane-water interface to control the stability of oil-in-water (O/W) emulsions. The corresponding surface frozen and surface liquid mixed adsorbed films were characterized using interfacial tensiometry and X-ray reflectometry. The emulsion samples prepared in the temperature range of the surface frozen and surface liquid phases showed a clear difference in their stability: the emulsion volume decreased continuously right after the emulsification in the surface liquid region, while it remained constant or decreased at a much slower rate in the surface frozen region. Compared to the previously examined CTAC-tetradecane mixed adsorbed film, the surface freezing temperature increased from 9.5 to 25.0 °C due to the better chain matching between CTAC and C16OH and higher surface activity of C16OH. This then renders such systems much more attractive for practical applications 
650 4 |a Journal Article 
700 1 |a Masunaga, Akihiro  |e verfasserin  |4 aut 
700 1 |a Takiue, Takanori  |e verfasserin  |4 aut 
700 1 |a Tanida, Hajime  |e verfasserin  |4 aut 
700 1 |a Uruga, Tomoya  |e verfasserin  |4 aut 
700 1 |a Nitta, Kiyofumi  |e verfasserin  |4 aut 
700 1 |a Prause, Albert  |e verfasserin  |4 aut 
700 1 |a Gradzielski, Michael  |e verfasserin  |4 aut 
700 1 |a Matsubara, Hiroki  |e verfasserin  |4 aut 
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