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SURFACE-COMPOSITION OF MIXED SURFACTANT MONOLAYERS AT CONCENTRATIONS WELL IN EXCESS OF THE CRITICAL MICELLE CONCENTRATION - A NEUTRON-SCATTERING STUDY

Abstract:
Spectra neutron reflection has been used to determine the adsorption of sodium dodecyl sulfate (SDS) and n-dodecyl triethylene glycol (C12E3) at the air-solution interface at a fixed bulk composition ratio (65 mol % C12E3) over a wide range of concentrations in excess of the critical micelle concentration. The results are compared with those obtained from the application of regular solution theory to surface tension data for the same system. The proportion of SDS in the absorbed layer is in good agreement with the theoretical predictions.
Publication status:
Published

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Publisher copy:
10.1021/la00031a009

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
Journal:
LANGMUIR
Volume:
9
Issue:
7
Pages:
1651-1656
Publication date:
1993-07-01
DOI:
EISSN:
1520-5827
ISSN:
0743-7463
Language:
English
Pubs id:
pubs:44177
UUID:
uuid:03a6c7c6-3137-46d1-8c7b-3d5c570121a4
Local pid:
pubs:44177
Source identifiers:
44177
Deposit date:
2012-12-19

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