Synergistic Effects of Mixed Aromatic Counterions on Nanostructures and Drag Reducing Effectiveness of Aqueous Cationic Surfactant Solutions

被引：13

作者：

Ge, Wu ^{[1
]}

Shi, Haifeng ^{[1
]}

Talmon, Yeshayahu ^{[2
]}

Hart, David J. ^{[3
]}

Zakin, Jacques L. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Chem & Biomol Engn, Columbus, OH 43210 USA

[2] Technion Israel Inst Technol, Dept Chem Engn, IL-32000 Haifa, Israel

[3] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2011年 / 115卷 / 19期

关键词：

RHEOLOGICAL PROPERTIES; MICELLAR-SOLUTIONS; VISCOELASTIC PROPERTIES; ORIENTATIONAL BINDING; DETERGENT MOLECULES; SODIUM-SALICYLATE; ELONGATIONAL FLOW; WORMLIKE MICELLES; RODLIKE MICELLES; REDUCTION;

D O I：

10.1021/jp201386v

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：

Drag reduction effectiveness of two dilute quaternary ammonium surfactant aqueous solutions with different pairs of mixed aromatic counterions was investigated along with their micellar nanostructures revealed by cryo-TEM imaging, zeta potential, particle size, and (1)H NMR measurements. Certain combinations of aromatic counterion mixtures showed significant synergistic effects. They dramatically improved drag reduction effectiveness relative to either single aromatic counterion. Using mixed aromatic counterions with different sizes and binding abilities, the effective drag reducing temperature range can be significantly expanded and higher shear stress stability can be achieved. The synergistic effects are believed to be induced by increased degree of branching in the surfactant micellar networks as shown by cryo-TEM images.

引用

页码：5939 / 5946

页数：8

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