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  Cooperative effects in surfactant adsorption layers at water/alkane interfaces

Fainerman, V. B., Sharipova, A. A., Aksenenko, E. V., Makievski, A. V., Nikolenko, M. V., Javadi, A., et al. (2019). Cooperative effects in surfactant adsorption layers at water/alkane interfaces. Colloids and Interfaces, 3(4): 67. doi:10.3390/colloids3040067.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-875A-E Version Permalink: http://hdl.handle.net/21.11116/0000-0005-875B-D
Genre: Journal Article

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Fainerman, Valentin B., Author
Sharipova, Altynay A., Author
Aksenenko, Eugene V., Author
Makievski, Alexander V., Author
Nikolenko, Mykola V., Author
Javadi, Aliyar, Author
Aidarova, Saule B., Author
Miller, Reinhard1, Author              
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1Reinhard Miller, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863501              

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 Abstract: In the present work, the properties of dodecyl dimethyl phosphine oxide (C12DMPO) at the water/decane interface are studied and compared with those obtained earlier at the interface to hexane. To simulate the interfacial behavior, a two-component thermodynamic model is proposed, which combines the equation of state and Frumkin isotherm for decane with the reorientation model involving the intrinsic compressibility for the surfactant. In this approach, the surface activity of decane is governed by its interaction with C12DMPO. The theory predicts the influence of decane on the decrease of the surface tension at a very low surfactant concentration for realistic values of the ratio of the adsorbed amounts of decane and surfactant. The surfactantrsquo;s distribution coefficient between the aqueous and decane phases is determined. Two types of adsorption systems were used: a decane drop immersed into the C12DMPO aqueous solution, and a water drop immersed into the C12DMPO solution in decane. To determine the distribution coefficient, a method based on the analysis of the transfer of C12DMPO between water and decane is also employed.

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Language(s): eng - English
 Dates: 2019-12-122019
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.3390/colloids3040067
BibTex Citekey: colloids3040067
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Title: Colloids and Interfaces
Source Genre: Journal
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Publ. Info: Basel : MDPI
Pages: - Volume / Issue: 3 (4) Sequence Number: 67 Start / End Page: - Identifier: ISSN: 2504-5377