Salt-induced viscoelastic wormlike micelles formed in surface active ionic liquid aqueous solution

被引：110

作者：

Bin Dong ^{[1
]}

Jin Zhang ^{[1
]}

Liqiang Zheng ^{[1
]}

Suqing Wang ^{[1
]}

Xinwei Li ^{[1
]}

Tohru Inoue ^{[2
]}

机构：

[1] Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China

[2] Fukuoka Univ, Fac Sci, Dept Chem, Jonan Ku, Fukuoka 8140180, Japan

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2008年 / 319卷 / 01期

关键词：

surface active ionic liquid; wormlike micelles; rheology; viscoelasticity; FF-TEM;

D O I：

10.1016/j.jcis.2007.11.040

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 growth and structure of the aqueous micellar solutions of a surface active ionic liquid, 1-hexadecyl-3-methylimidazolium bromide (C(16)mimBr), in the presence of an organic salt sodium tosylate (NaTos), were investigated by rheological measurements and freeze-fracture transmission electron microscopy at room temperature (298 K). As in some conventional ionic surfactant/salt aqueous systems, wormlike micelles and network structures could be formed in the C(16)mimBr/NaTos aqueous solutions, according to measurements of the zero-shear viscosity, the entanglement length, the average contour length, as well as application of the Cox-Merz empirical rule and Cole-Cole plots. FF-TEM images further confirmed that wormlike micelles were formed in these aqueous solutions. The wormlike micelles presented here would expand potential applications of ionic liquids in home care products, oilfield stimulation fluids, and nanobiotechnology. (C) 2007 Elsevier Inc. All rights reserved.

引用

页码：338 / 343

页数：6

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