Results 151 to 160 of about 142,846 (190)

Interactions between fluorocarbon surfactants and polysaccharides

Journal of Molecular Liquids, 2019
Interactions between the mixtures of fluorine surfactants (FS) of different chemical character (anionic - Capstone FS-64, cationic - S-106A and non-ionic - Capstone FS-30) and polysaccharides (anionic – carboxymethyl cellulose (CMC), cationic starch (CS) and non-ionic – hydroxyethyl cellulose (HEC)) have been investigated by surface tension, viscosity ...
Elżbieta Monika Grządka, Matusiak, Jakub, Marek Stankevič   +2 more
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Interactions of fluorocarbon-modified poly(acrylic acid) with a cationic fluorocarbon surfactant

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2003
Abstract The physicochemical properties of mixed systems of fluorocarbon-modified poly(acrylic acid) (FA) with a cationic fluorocarbon surfactant, bis(2-hydroxyethyl)(2-hydroxy-3-perfluoro-octylpropyl)methylammonium chloride (DEFUMAC), have been investigated by surface tension, fluorescence, solubility, and 19F NMR spin–lattice relaxation ...
Fuminori Kobayashi, Tomokazu Yoshimura, Kunio Esumi   +2 more
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Thermodynamics of micellization of fluorocarbon surfactants

Journal of Colloid and Interface Science, 1980
Abstract The free energy, enthalpy, and entropy of micellization of fluorocarbon surfactants were determined from the surface tension-log concentration curves at various temperatures. Plots of the logarithm of the critical micelle concentration versus 1/ T (where T is the absolute temperature) were not linear, indicating a decrease of enthalpy of ...
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Properties of aqueous solution of a fluorocarbon surfactant and a nonionic surfactant, and their mixtures

Journal of the American Oil Chemists' Society, 1981
AbstractThe surface tensions of aqueous solutions of lithium perfluorooctane sulfonate (LiFOS) and hexaethyleneglycoln‐dodecylether (6ED), and of their mixtures, were measured. The effect of each surfactant additives on the adsorption and the micelle formation was discussed on the basis of the surface tension values using the Langmuir adsorption ...
T. Suzuki, M. Ueno, K. Meguro
openaire   +1 more source

Telomeric Tham-Derived Perfluoroalkylated Surfactants for Fluorocarbon Emulsions

Biomaterials, Artificial Cells and Immobilization Biotechnology, 1992
New fluorophilic and hydrophilic, cost efficient telomeric surfactants derived from tris(hydroxymethyl)acrylaminomethane were synthesized in 2 steps in 80% yield with respect to the perfluoroalkylated telogen. They demonstrate better ability to emulsify fluorocarbons than Pluronic f-68.
J G, Riess, A A, Pavia, B, Pucci, L, Zarif   +3 more
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Miscibility of Hydrocarbon and Fluorocarbon Surfactants in Adsorbed Film and Micelle

Journal of Colloid and Interface Science, 2001
We investigated the miscibility of nonionic hydrocarbon and fluorocarbon surfactants in the adsorbed film and the micelle by surface tension measurements of the aqueous solution. The combination of tetraethyleneglycol monodecyl ether (C10E4) and tetraethyleneglycol mono-1,1,7-trihydrododecafluoroheptyl ether (FC7E4) was chosen because they have the ...
Masumi, Villeneuve, Teruko, Nomura, Hitoshi, Matsuki, Shoji, Kaneshina, Makoto, Aratono   +4 more
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Incorporation of Fluorocarbon in Fluorinated Surfactant Based Liquid Crystals

Langmuir, 2003
The solubilization of a fluorocarbon oil in a nonionic fluorinated surfactant/water system is investigated by small-angle X-ray scattering to understand its role in the phase transitions between li...
Ropers, Marie-Hélène, Stebe, Marie-José   +1 more
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Surfactivity of a Series of Nonionic Fluorocarbon Surfactant − Perfluorousnonenyl Polyethylene Glycol Ether

Advanced Materials Research, 2015
The surfactivity of nonionic fluorocarbon surfactants, polyethylene glycol perfluoro-nonyl monoether (C9F17-PEG-n) and diether (C9F17-PEG-n-C9F17), was systematically investigated, including the surface tensions (γ), critical micelle concentration (CMC), cloud point, foaming property and emulsifiability.
Hong Xin Shi, Hao Miao Zhou, Hai Min Shen, Hong Ke Wu   +3 more
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Mixed insoluble monolayers of fluorocarbon and hydrocarbon surfactants

Journal of Colloid and Interface Science, 1991
Abstract The mixed insoluble monolayers of the fluorocarbon surfactants (FSAa) and hydrocarbon surfactants (HSAa) with similar molecular structure (including FSAa-FSAa, HSAa-HSAa, and FSAa-HSAa mixed systems) have been studied. All of them seem ideal, i.e., the π-A curves obey the simple additivity rule.
Lan-Hui Zhang, Guo-Xi Zhao, Bu-Yao Zhu
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Self-assembly in fluorocarbon surfactant systems

Current Opinion in Colloid & Interface Science, 1998
Significant advances have been attained in the characterization of microstructure and microstructural transitions of surfactant aggregates in terms of shape, dimension, and connectivity, in both micellar and liquid crystalline phases and microemulsion systems.
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