Dynamic interfacial dilational properties of hydroxy-substituted alkyl benzenesulfonates

被引:92
|
作者
Huang, Yu-Ping
Zhang, Lei [1 ]
Zhang, Lu
Luo, Lan
Zhao, Sui
Yu, Jia-Yong
机构
[1] Chinese Acad Sci, Tech Inst Phys & Chem, 2 N 1 Alley,Zhong Guan Cun,POB 2711,61 Sect, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源
JOURNAL OF PHYSICAL CHEMISTRY B | 2007年 / 111卷 / 20期
关键词
D O I
10.1021/jp070997t
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
Synthesis, characterization, and interfacial properties of hydroxy-substituted alkyl benzenesulfonates, sodium 2-hydroxy-3-decyl-5-octylbenzenesulfonate (C(10)C(8)OHphSO(3)Na) and 2-hydroxy-3-octyl-5-decylbenzenesulfonate (C(8)C(10)OHphSO(3)Na), are reported. The dynamic dilational properties of the surfactants are expounded by means of oscillating the bubble/drop method at both water-air and water-decane interfaces. The distinct maxima appear in dilational modulus vs time curves in some cases, which is believed to be attributed to the change of surfactant conformation and the arrangement of surface layer. Our results show that the measurement of dynamic interfacial dilational properties is a powerful tool to probe the structure of the surfactant adsorption film.
引用
收藏
页码:5640 / 5647
页数:8
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