Results 251 to 260 of about 84,845 (282)

Experimental evaluation of alterations in crude oil properties induced by hydrochloric acid, reservoir rock powder, and surfactants. [PDF]

Sci Rep
Mohammadi Taghiabadi M, Saeedi Dehaghani AH.   +1 more
europepmc   +1 more source

Surfactant-enabled strategy for molecular solar thermal energy storage systems in water.

Green Chem
Fernandez L, Hölzel H, Ferreira P, Baggi N, Moreno K, Wang Z, Moth-Poulsen K.   +6 more
europepmc   +1 more source

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Surface potential and non-ionic surfactants

Journal of Electroanalytical Chemistry, 1973
Summary Surface potential measurements on water solutions of non-ionic polyoxyethylene surfactants were performed by the ionization method. The surface potential was sensitive to very small quantities (1×10−2 p.p.m.) of these surfactants in solution.
Anna Faviani, Mariagrazia Costa, Silvano Bordi   +2 more
openaire   +2 more sources

Non-ionic thiol-ended surfactants

Polymer Bulletin, 1995
Non ionic thiol-ended surfactants have been prepared either by esterification of thioglycolic acid with poly(ethylene oxide) methyl ether or by anionic coordinated polymerisation of ethylene oxide in the presence of bromo-11-undecanol as transfer agent followed by reaction with thiourea and subsequent hydrolysis. The surfactants have been characterized
F. Vidal, T. Hamaide
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Calcitropic Non-ionic Surfactant Lamellar Phases

Chemistry of Materials, 1996
The aqueous non-ionic surfactant decaethylene glycol hexadecyl ether (C16EO10), in the presence of CaCl2, forms novel “calcitropic” lamellar liquid-crystal phases. Thin films of these materials display notable structure sensitivity to the hydrophobicity or hydrophilicity of the underlying support.
Natalia Varaksa, Alex Kuperman, Geoffrey A. Ozin   +2 more
openaire   +1 more source

Forces between non-ionic surfactant layers

Faraday Discuss. Chem. Soc., 1990
The nature of the repulsive forces acting between non-ionic hydrophilic surfaces has been investigated by the surface-force technique. For that purpose the interactions between head-groups of several non-ionic surfactants adsorbed on mica or hydrophobed mica were measured.
Per M. Claesson, Jan Christer Eriksson, Christina Herder, Björn A. Bergenståhl, Erwoan Pezron, Isabelle Pezron, Per Stenius   +6 more
openaire   +1 more source

Clay/Non-Ionic Surfactant Hybrid Nanocomposites

2020
This chapter gives an overview of the structural and chemical physical properties of nanocomposites formed by clay minerals and surfactants, which represent a class of materials with promising features for applications in different industrial, biomedical, and environmental applications.
Giuseppe Cavallaro, Giuseppe Lazzara, Stefana Milioto, Filippo Parisi, Luciana Sciascia   +4 more
openaire   +3 more sources

Short-range interactions between non-ionic surfactant layers

Physical Chemistry Chemical Physics, 2006
Short-range interactions between surfactant and lipid layers are of great importance in technical applications in complex fluids such as foams, dispersions and emulsions, as well as in the formulation and performance of dispersants, detergents and flocculants. It is also of utmost importance in biological systems where interactions between biomembranes
Per M, Claesson, Mikael, Kjellin, Orlando J, Rojas, Cosima, Stubenrauch   +3 more
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Activated sludge acclimatisation kinetics to non‐ionic surfactants

Environmental Technology, 2003
The biodegradation of surfactants is a frequent and complex problem in domestic and industrial wastewater treatment processes. In addition to the resulting metabolites being sometimes refractory, the complete biodegradation of many of the most employed non-ionic surfactants requires long hydraulic retention times and the presence of specialised ...
Carvalho, G, Novais, JM, Pinheiro, HM
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Biodegradability of non-ionic surfactants

1995
Non-ionic surfactants can be described as being covalent compounds which have hydrophilic and hydrophobic moieties and which do not ionise when dissolved in water.
T. Balson, M. S. B. Felix
openaire   +1 more source