Results 161 to 170 of about 142,846 (190)

Formation of Fluorocarbon Surfactant Reversed Micelles in a Halosolvent

Journal of Colloid and Interface Science, 1996
Abstract The constitution of reversed micelles of C 6 F 13 COOH (perfluoroheptanoic acid, PFHA) in a chlorofluorocarbon medium (1,1,2-trichlorotrifluoroethane, TCFE) was characterized by a number of techniques, including IR, NMR, and UV–vis and fluorescence probes. Dimensions of these reversed micelles were determined by quasielastic light scattering.
Chung-Li Lai, Edgar A. O'rear, Jeffrey H. Harwell   +2 more
openaire   +1 more source

Syntheses of novel fluorocarbon surfactants with oxyethylene groups

Journal of Fluorine Chemistry, 1998
Abstract Three anionic fluorocarbon surfactants with oxyethylene groups, sodium bis[2-{2-(perfluoroalkyl)ethoxy}ethyl] 2-sulfosuccinate C n F 2 n +1 -CH 2 CH 2 OCH 2 CH 2 OCOCH 2 CH(SO 3 Na)COOCH 2 CH 2 OCH 2 CH 2 C n F 2 n +1 ( n FEOS; n = 4, 6, or 8), were prepared from ethylene carbonate, maleic anhydride, corresponding alcohols having a ...
Yukishige Kondo, Eiichiro Yokochi, Sanae Mizumura, Norio Yoshino   +3 more
openaire   +1 more source

Synergistic solubilization of decafluorobiphenyl by micelles of fluorocarbon surfactants

Journal of Surfactants and Detergents, 1998
AbstractSolubilization of decafluorobiphenyl (FBIP) by surfactants in aqueous solution was examined to investigate the properties of micelles composed of surfactants having a per‐fluorocarbon chain. Fluorocarbon surfactants solubilize FBIP better than hydrocarbon surfactants.
Tsuyoshi Asakawa, Takashi Kitaguchi, Shigeyoshi Miyagishi   +2 more
openaire   +1 more source

Electrostatic effects on comicellization of fluorocarbon and hydrocarbon surfactants

Journal of Colloid and Interface Science, 1980
The surface tension of mixtures of an ionic fluorocarbon surfactant (NF; C/sub 9/F/sub 17/OC/sub 6/H/sub 4/SO/sub 3/Na) with nonionic (DMS; C/sub 12/H/sub 25/SOCH/sub 3/) and ionic (STS; C/sub 14/H/sub 29/SO/sub 4/Na) hydrocarbon surfactants was measured in the presence of sodium chloride at different concentrations.
Noriaki Funasaki, Sakae Hada
openaire   +1 more source

Effect of Urea on Micelle Formation of Fluorocarbon Surfactants

Langmuir, 1995
The effect of urea on micelle formation of fluorocarbon surfactants was investigated by measuring conductivity cmc and fluorescence intensity of probes (1-anilinonaphthalene-8-sulfonate, auramine, and pyrene). We examined various fluorocarbon surfactants which consist of different ionic head groups, i.e., lithium perfluorononanoate (LiPFN ...
Tsuyoshi Asakawa, Michiyo Hashikawa, Kouji Amada, Shigeyoshi Miyagishi   +3 more
openaire   +1 more source

Microstructures in the aqueous solutions of a hybrid anionic fluorocarbon/hydrocarbon surfactant

Journal of Colloid and Interface Science, 2003
The aqueous solutions of the anionic hybrid fluorocarbon/hydrocarbon surfactant sodium 1-oxo-1[4-(tridecafluorohexyl)phenyl]-2-hexanesulfate (FC6HC4) shows peculiar rheological behavior. At 25 degrees C the viscosity vs concentration curve goes successively through a maximum and a minimum, while the viscosity vs temperature curve of the 10 wt% aqueous ...
Danino, D., Weihs, D., Zana, R., Orädd, G., Lindblom, G., Abe, M., Talmon, Y.   +6 more
openaire   +3 more sources

Stabilization of fluorocarbon emulsions by sugar-derived perfluoroalkylated surfactants and co-surfactants

2007
Fluorocarbon emulsions have considerable potential as injectable oxygen carriers (blood substitutes, in particular), contrast agents for diagnosis, and drug-delivery systems.
J. G. Riess, J. Greiner, S. Abouhilale, A. Milius   +3 more
openaire   +1 more source

Self-Assembly of a Fluorocarbon−Hydrocarbon Hybrid Surfactant: Dependence of Morphology on Surfactant Concentration and Time

The Journal of Physical Chemistry B, 2010
The morphologies of aggregates formed from a hybrid surfactant (F6H5OS) whose molecules have a hydrocarbon chain (pentyl group) and a fluorocarbon chain (perfluorohexyl group) were studied along with changes in the morphologies with time. F6H5OS exhibits a micelle-vesicle transition at a concentration of 5.5 mM in water.
Yutaka, Takahashi, Yukishige, Kondo, Judith, Schmidt, Yeshayahu, Talmon   +3 more
openaire   +2 more sources

Design, Synthesis and Evaluation of Fluorocarbons and Surfactants for in Vivo Applications New Perfluoroalkylated Polyhydroxylated Surfactants

Biomaterials, Artificial Cells and Artificial Organs, 1988
The progress achieved since the advent of Fluosol-DA is summarized in this paper, with special focus on the synthesis and evaluation of more adequate, reliable, industrially feasible fluorocarbons, structure/property relationships--molecular weight being recognized as the pre-eminent determining factor of both the fluorocarbon's excretion rate and the ...
J G, Riess, C, Arlen, J, Greiner, M, Le Blanc, A, Manfredi, S, Pace, C, Varescon, L, Zarif   +7 more
openaire   +2 more sources

Interactions Between Fluorocarbon Surfactant and Coal Dust at Macro, Meso and Molecular Scales and Their Applications in Coal Dust Control

Chemical Engineering Journal, 2023
Stephen Nyabire Akanyange, Wenjin Niu, Qiu Bao   +2 more
exaly