THE COMPOSITION OF NONIONIC SURFACTANT MIXTURES AT THE AIR/WATER INTERFACE AS DETERMINED BY NEUTRON REFLECTIVITY

被引：46
|
作者：
PENFOLD, J [1 ]
STAPLES, E [1 ]
THOMPSON, L [1 ]
TUCKER, I [1 ]
机构：
[1] UNIVLEVER RES,PORT SUNLIGHT LAB,WIRRAL,MERSEYSIDE,ENGLAND
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1995年 / 102卷
关键词：
AIR/WATER INTERFACE; NONIONIC SURFACTANT MIXTURES; NEUTRON REFLECTIVITY;
D O I：
10.1016/0927-7757(95)03228-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Neutron reflectivity has been used to study the adsorption of non-ionic mixtures at the air/water interface. Measurements have been made over a wide concentration range from below to above the critical micellar concentration (CMC), (10(-5) -10(-2) M). The data provides a direct qualitative confirmation of the abrupt changes in surface composition at the CMC due to the onset of mixed micelle formation predicted recently by Nikas, Puvvada, and Blankschtein, Langmuir, 8 (1992) 2680. The data for concentrations below the CMC are compared with the earlier results of Rosen and Hua, J. Colloid Interface Sci., 86 (1982) 164.
引用
收藏
页码：127 / 132
页数：6
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