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

被引：50
|
作者：
STAPLES, E
THOMPSON, L
TUCKER, I
PENFOLD, J
THOMAS, RK
LU, JR
机构：
[1] RUTHERFORD APPLETON LAB,ISIS SCI DIV,DIDCOT OX11 0QX,OXON,ENGLAND
[2] UNIV OXFORD,PHYS CHEM LAB,OXFORD,ENGLAND
来源：
LANGMUIR | 1993年 / 9卷 / 07期
关键词：
D O I：
10.1021/la00031a009
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Specular 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 adsorbed layer is in good agreement with the theoretical predictions.
引用
收藏
页码：1651 / 1656
页数：6
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