Results 241 to 250 of about 255,817 (279)

Evidence for a Critical Micelle Concentration of Surfactants in Hydrocarbon Solvents

Langmuir, 2013
The concentration-dependent aggregation of two surfactants, anionic sodium dioctylsulfosuccinate (Aerosol OT or AOT) and nonionic pentaethylene glycol monododecyl ether (C12E5), has been studied in cyclohexane-D12 using small-angle neutron scattering (SANS).
Smith, Gregory N., Brown, Paul, Rogers, Sarah E., Eastoe, Julian   +3 more
openaire   +3 more sources

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

Effect of Hydrocarbon Parts of the Polar Headgroup on Surfactant Aggregates in Gemini and Bola Surfactant Solutions

Langmuir, 2007
Cationic gemini surfactant homologues alkanediyl-alpha,omega-bis(dodecyldiethylammonium) bromide, [C12H25(CH3CH2)2N(CH2)SN(CH2CH3)2C12H25]Br2, where S = 4, 6, 8, 10, or 12, referred to as C12CSC12(Et), and cationic bolaamphiphiles BPHEAB (biphenyl-4,4'-bis(oxyhexamethylenetriethylammonium) bromide), PHEAB (phenyl-4,4'- bis ...
Ting, Lu, Feng, Han, Guangru, Mao, Guofeng, Lin, Jianbin, Huang, Xu, Huang, Yilin, Wang, Honglan, Fu   +7 more
openaire   +2 more sources

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

Solubilization of hydrocarbons by surfactant micelles and mixed micelles

Journal of Colloid and Interface Science, 1989
Abstract Extensive and highly precise vapor pressure results have been obtained for solutions of cyclohexane and hexane in cationic, anionic, and nonionic surfactant micelles, and in mixed anionic-nonionic, cationic-nonionic, and anionic-cationic micelles.
George A Smith, Sherril D Christian, Edwin E Tucker, John F Scamehorn   +3 more
openaire   +1 more source

Impact of Surfactant on Configuration of Petroleum Hydrocarbon Lens

Journal of Soil Contamination, 1998
A laboratory-scale physical model was constructed for visual observation of the basic 2-D flow characteristics of a gasoline spill through an unconfined aquifer and the subsequent treatment with a surfactant. The model consists of a parallel-plate glass tank (1 m×1 m×5 cm) packed with Ottawa sand. Gasoline was released from a point source in the vadose
Lizette R. Chevalier, Roger B. Wallace, David C. Wiggert   +2 more
openaire   +1 more source

Flocculation of anionic surfactant micelles in the presence of hydrocarbons

Colloid & Polymer Science, 2000
Adsorptive micellar flocculation (AMF) is a surfactant-based separation process based on the flocculation of micelles of suitable anionic surfactants by Al3+. The micelles form large amorphous flocs which can be removed by filtration, which is attractive because soluble pollutants are captured by the floc, thus providing a simple separation method.
P. Patón-Morales, F. I. Talens-Alesson
openaire   +1 more source

Solubilization of pada in Hydrocarbon Fluorocarbon Surfactant Mixtures

Australian Journal of Chemistry, 1992
Solubilities of pyridine-2-azo- p -dimethylaniline ( pada ) were determined at 25ºC in four mixed fluorocarbon/hydrocarbon short-chained surfactant systems: ( i ) sodium decyl sulfate/sodium perfluoroheptanoate; (ii) sodium octanesulfonate /sodium perfluorooctanoate ; (iii) sodium octanesulfonate /sodium perfluoroheptanoate ; (iv) sodium ...
TJ Connolly, VC Reinsborough, XY Xiang
openaire   +1 more source

Surfactant for the management of pediatric hydrocarbon ingestion

The American Journal of Emergency Medicine, 2018
Christopher Sommer, Adam B. Johnson, G. Sam Wang, Kevin Poel   +3 more
openaire   +2 more sources

ChemInform Abstract: DEMIXING OF MICELLES OF FLUOROCARBON AND HYDROCARBON SURFACTANTS. EFFECTS OF HYDROPHOBIC AND HYDROPHILIC GROUPS OF HYDROCARBON SURFACTANTS

Chemischer Informationsdienst, 1983
N. FUNASAKI, S. HADA
openaire   +1 more source