منابع مشابه
Physicochemical properties of oleic acid-based partially fluorinated gemini surfactants.
We have developed oleic acid-based partially fluorinated gemini surfactants with carboxylic acid headgroups. The fluorocarbon chain is covalently bound to the terminal carbonyl group of oleic acid via a -CH(2)CH(2)OCO- unit, and the carboxylic acid headgroups are introduced to the cis double bond of oleic acid via -OCOCH(2)CH(2)- units. The aqueous solution properties of these surfactants were ...
متن کاملNovel sugar-based gemini surfactants: aggregation properties in aqueous solutiony
Gemini or dimeric surfactants can in principle be viewed as two conventional surfactants connected via a spacer at the level of the polar headgroups. A novel class of sugar-based gemini surfactants with rich and intriguing aggregation behavior in aqueous solution is the focus of this mini-review. The headgroup of the geminis consists of reduced sugars (glucose or mannose) connected to tertiary ...
متن کاملUrea-based gemini surfactants: Synthesis, aggregation behaviour and biological activity
a Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Bratislava, SK-83232 Slovakia b Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, H-1121 Budapest, Hungary c Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, Chin...
متن کاملSynthesis and Properties of Dissymmetric Gemini Surfactants
A series of novel dissymmetric gemini cationics surfactants was synthesized by three-step reactions. The dissymmetric gemini surfactants contain a dodecanoic acid dimethylethylamine ester as the constant cationic part on one side of the hydroxypropyl center and a similar other cationic part, but with a different acid length (from octanoic to palmitic), on the other side. The critical micelle co...
متن کاملAmino acid-based surfactants
The amino acid-based surfactants contain an amide bond, which may contribute to the selfassembly of the surfactants both at surfaces and in the bulk. In order to assess the importance of this type of intermolecular association, the behavior of sodium lauroyl glycinate and sodium lauroyl sarcosinate were compared. The former surfactant is capable of forming intermolecular hydrogen bonds while th...
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ژورنال
عنوان ژورنال: Oleoscience
سال: 2011
ISSN: 1345-8949
DOI: 10.5650/oleoscience.11.327