Control of viscoelasticity using redox reaction

被引：253

作者：

Tsuchiya, K

Orihara, Y

Kondo, Y

Yoshino, N

Ohkubo, T

Sakai, H

Abe, M

机构：

[1] Sci Univ Tokyo, Fac Sci & Technol, Noda, Chiba 2788510, Japan

[2] Sci Univ Tokyo, Fac Engn, Tokyo 1628601, Japan

[3] Sci Univ Tokyo, Inst Colloid & Interface Sci, Tokyo 1628601, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 39期

关键词：

D O I：

10.1021/ja0467162

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The viscoelasticity of a fluid was tuned with the Faradaic reaction of (11-ferrocenylundecyl)trimethylammonium bromide (FTMA), a "redox-switchable" surfactant. An aqueous solution of the reduced form of FTMA exhibited a remarkable viscoelasticity in the presence of sodium salicylate (NaSal) because of the formation of three-dimensional entanglement of wormlike micelles. Electrolytic oxidation of FTMA caused the viscosity of the system to dramatically decrease and the elasticity to disappear. This drastic decrease in viscoelasticity arose from the disruption of wormlike micelles. This novel electrorheological phenomenon is expected to be applicable to ink for inkjet printers, the electrochemically controlled release of substances entrapped in wormlike micelles of FTMA, and fluid flow rate control using electric signals. Copyright © 2004 American Chemical Society.

引用

页码：12282 / 12283

页数：2