10.17863/CAM.12087
Allen, Finian
0000-0002-9823-562X
Griffin, Lucy
Alloway, Richard
Gutfreund, P
Lee, SY
Truscott, Christopher
0000-0001-5663-772X
Welbourn, R
Wood, Mary
Clarke, Stuart
0000-0001-5224-2368
Anionic Surfactants on Anionic Substrate: Monovalent Cation Binding
Apollo - University of Cambridge Repository (staging)
2017
Apollo - University of Cambridge Repository (staging)
Apollo - University of Cambridge Repository (staging)
2017-11-13
2017-11-13
2017-08-15
Article
0743-7463
https://www.repository.cam.ac.uk/handle/1810/269020
1520-5827
Neutron reflectometry has been used to study the adsorption of the anionic surfactant bis(2-ethylhexyl) sulfosuccinate cesium salt on the anionic surface of mica. Evidence of significant adsorption is reported. The adsorption is reversible and changes little with pH. This unexpected adsorption behavior of an anionic molecule on an anionic surface is discussed in terms of recent models for surfactant adsorption such as cation bridging, where adsorption has been reported with the divalent ion calcium but not previously observed with monovalent ions.
BP P.L.C. are thanked for financial support (RG86209).
Engineering and Physical Sciences Research Council
1799423