An Anionic Surfactant on an Anionic Substrate: Monovalent Cation Binding

被引：23

作者：

Allen, Finian J. ^{[1
,2
]}

Griffin, Lucy R. ^{[1
,2
]}

Alloway, Richard M. ^{[1
,2
]}

Gutfreund, Philipp ^{[3
]}

Lee, Seung Yeon ^{[1
,2
]}

Truscott, Chris L. ^{[1
,2
]}

Welbourn, Rebecca J. L. ^{[4
]}

Wood, Mary H. ^{[1
,2
]}

Clarke, Stuart M. ^{[1
,2
]}

机构：

[1] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

[2] Univ Cambridge, BP Inst, Cambridge CB2 1EW, England

[3] Inst Laue Langevin, F-38000 Grenoble, France

[4] Rutherford Appleton Lab, STFC, ISIS Pulsed Neutron Facil, Harwell Sci & Innovat Campus, Didcot OX11 0QX, Oxon, England

来源：

LANGMUIR | 2017年 / 33卷 / 32期

基金：

英国工程与自然科学研究理事会;

关键词：

SPECULAR NEUTRON REFLECTION; AEROSOL-OT; MICA/WATER INTERFACE; NUMBERED PARAFFINS; LIQUID INTERFACE; WATER-INTERFACE; MUSCOVITE MICA; ADSORPTION; SODIUM; CONDENSATION;

D O I：

10.1021/acs.langmuir.7b01837

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：7881 / 7888

页数：8

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