Dilational properties of tri-substituent sodium alkyl benzene sulfonates with different structures at the air/water and decane/water interfaces

被引：10
|
作者：
Zhang Lei [1 ]
Wang Xiao-Chun [1 ]
Gong Qing-Tao [1 ]
Luo Lan [1 ]
Zhang Lu [1 ]
Zhao Sui [1 ]
Yu Jia-Yong [1 ]
机构：
[1] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 2007年 / 23卷 / 12期
关键词：
sodium alkyl benzene sulfonate; surface; interface; dilational modulus;
D O I：
10.3866/PKU.WHXB20071210
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：
The dilational theological properties of a pair of structural isomers: sodium 2-propyl-4,5-dihexyl benzene sulfonate (366) and sodium 2,5-dipropyl-4-nonyl benzene sulfonate(393) at the air/water and deeane/water interfaces were investigated by drop shape analysis method. The influences of concentration on dilational modulus were expounded. The experimental results showed that the 5-alkyl played an important role in the surface dilational modulus, while the dimension of surfactant molecule dominated the interfacial dilatinal modulus.
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收藏
页码：1881 / 1885
页数：5
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