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  Particular behavior of surface tension at the interface between aqueous solution of surfactant and alkane

Fainerman, V. B., Aksenenko, E. V., Makievski, A. V., Nikolenko, M. V., Javadi, A., Schneck, E., et al. (2019). Particular behavior of surface tension at the interface between aqueous solution of surfactant and alkane. Langmuir, 35(47), 15214-15220. doi:10.1021/acs.langmuir.9b02579.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-EB99-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-E4F2-8
Genre: Journal Article

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 Creators:
Fainerman, Valentin B., Author
Aksenenko, Eugene V, Author
Makievski, Alexander V, Author
Nikolenko, Mykola V., Author
Javadi, Aliyar1, Author              
Schneck, Emanuel2, Author              
Miller, Reinhard1, Author              
Affiliations:
1Reinhard Miller, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863501              
2Emanuel Schneck, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2074300              

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 Abstract: A two-component interfacial layer model was employed to describe the experimental results obtained for various surfactants. In contrast to the previous works, here it is shown that the adsorption activity of alkane depends on its interaction with the adsorbed surfactant, and is proportional to the surface coverage by this surfactant. Also, it is assumed that this increase of the adsorption activity parameter is limited by some maximum value. This model provides a good description of the influence of hexane and dodecane which results in the decrease of surface tension by 2-5 mN/m at very low surfactant concentrations. The adsorbed amounts of the surfactant and alkane molecules in this low surfactant concentration range are determined. The adsorbed amounts of the surfactant and alkane molecules in this low surfactant concentration range have been calculated. The reorientation model of surfactant adsorption predicts a smaller number of alkane molecules per one surfactant molecule than that which follows from the Frumkin model.

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Language(s): eng - English
 Dates: 2019-10-202019
 Publication Status: Published in print
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 Identifiers: DOI: 10.1021/acs.langmuir.9b02579
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Title: Langmuir
  Abbreviation : Langmuir
Source Genre: Journal
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Publ. Info: Columbus, OH : American Chemical Society
Pages: - Volume / Issue: 35 (47) Sequence Number: - Start / End Page: 15214 - 15220 Identifier: ISSN: 0743-7463