Effect of alkyl chain asymmetry on catanionic mixtures of hydrogenated and fluorinated surfactants

被引：22

作者：

Blanco, Elena ^{[1
]}

Rodriguez-Abreu, Carlos ^{[2
]}

Schulz, Pablo ^{[3
,4
]}

Ruso, Juan M. ^{[1
]}

机构：

[1] Univ Santiago de Compostela, Dept Appl Phys, Soft Matter & Mol Biophys Grp, E-15782 Santiago De Compostela, Spain

[2] CSIC, IQAC, Barcelona 08034, Spain

[3] Univ Nacl Sur, Dept Quim, RA-8000 Bahia Blanca, Buenos Aires, Argentina

[4] Univ Nacl Sur, INQUISUR, RA-8000 Bahia Blanca, Buenos Aires, Argentina

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2010年 / 341卷 / 02期

关键词：

Fluorinated; Hydrogenated; Catanionics; Rheology; Mixed; ANIONIC SURFACTANT; WORMLIKE MICELLES; PHASE-BEHAVIOR; CETYLTRIMETHYLAMMONIUM BROMIDE; AQUEOUS-SOLUTIONS; VESICLES; SYSTEM; SULFATE; WATER; SIZE;

D O I：

10.1016/j.jcis.2009.09.062

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

In this work we studied and compared the physicochemical properties of the catanionic mixtures cetyltrimethyl-ammonium bromide-sodium dodecanoate, cetyltrimethyl-ammonium bromide-sodium perfluorodacanoate, octyltrimethylammonium bromide-sodium perfluorodacanoate and cetyltrimethyl-ammonium bromide-sodium octanoate by a combination of theological, transmission electron microscopy (TEM) and polarized optical microscopy measurements. The binary mixtures of the surfactants have been analyzed at different mixed ratios and total concentration of the mixture. Mixtures containing a perfluorinated surfactant are able to form lamellar liquid crystals and stable spontaneous vesicles. Meanwhile, system containing just hydrogenated surfactants form hexagonal phases or they are arranged in elongated aggregates. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：261 / 266

页数：6

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