Rheological surface properties of C12DMPO solution as obtained from amplitude- and phase-frequency characteristics of an oscillating bubble system

被引：35
作者：
Kovalchuk, VI
Krägel, J
Makievski, AV
Ravera, F
Liggieri, L
Loglio, G
Fainerman, VB
Miller, R [1 ]
机构：
[1] MPI KGF, Golm, Germany
[2] Inst Biocolloid Chem, Kiev, Ukraine
[3] CNR, IENI, Genoa, Italy
[4] Univ Florence, Florence, Italy
[5] Med Physicochem Ctr, Donetsk, Ukraine
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2004年 / 280卷 / 02期
关键词：
Surfactant adsorption layers; oscillating bubble method; monolayer compressibility; dilational elasticity; diffusional relaxation; dodecyl dimethyl phosphine oxides;
D O I：
10.1016/j.jcis.2004.08.004
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 experimental data on the surface rheological characteristics of dodecyl dimethyl phosphine oxide solutions obtained in a fully automatic oscillating bubble device Under microgravity conditions in the frequency range 0.01-100 Hz are presented. The complex Surface elasticity modulus is obtained form the amplitude and phase-frequency characteristics of established pressure oscillations in a closed cell without calibration experiments by direct calculation of the necessary coefficients. The characteristics of the adsorption layers obtained front the elasticity modulus are in good agreement with adsorption isotherms and equations of state accounting for the intrinsic (2D) monolayer compressibility. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：498 / 505
页数：8
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