Interaction Parameters of Anhydrous Cationic Surfactant Mixtures by Inverse Gas Chromatography

被引：5

作者：

Bardavid, S. M. ^{[1
]}

Schulz, P. C. ^{[2
]}

Arancibia, E. L. ^{[1
]}

机构：

[1] Univ Nacl Tucuman, INQUINOA CONICET, Dept Ingn Proc & Gest Ind, Fac Ciencias Exactas & Technol, RA-4000 San Miguel De Tucuman, Tucuman, Argentina

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

来源：

JOURNAL OF SOLUTION CHEMISTRY | 2012年 / 41卷 / 07期

关键词：

Cationic surfactant mixtures; IGC; DSC; Interaction parameter; Energy density; POLYMER INTERACTION PARAMETERS; LIQUID-CRYSTAL SOLVENTS; STATISTICAL THERMODYNAMICS; ALKYLTRIMETHYLAMMONIUM BROMIDES; ALKYLPYRIDINIUM CHLORIDES; INTERFACIAL BEHAVIOR; RODLIKE PARTICLES; MIXED MICELLES; AQUEOUS-MEDIUM; CHAIN-LENGTH;

D O I：

10.1007/s10953-012-9855-y

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：

The miscibility of anhydrous cationic surfactant dodecylpyridinium chloride (DPC) and hexadecylpyridinium bromide (cetylpyridinium bromide (CPB)) mixtures has been studied by using them as stationary phases in Inverse Gas Chromatography (IGC). The temperature zone of work was determined by IGC and Differential Scanning Calorimetry (DSC) techniques. Values of the interaction parameter between the surfactants obtained at four different compositions and at four temperatures showed that the miscibility depends on the overall composition and suggested that the interactions are more favorable near the center of the composition range. Results are compared with other anhydrous cationic surfactant mixtures studied by IGC, the system didodecyldimethylammonium bromide (DDAB) and dioctadecyldimethylammonium bromide (DODAB), two twin-tailed surfactants, and are interpreted in terms of the structure of the anhydrous lamellar liquid crystals compared with that of aqueous lamellar mesophases.

引用

页码：1197 / 1209

页数：13

共 59 条

[1]

STATISTICAL THERMODYNAMICS OF MIXTURES OF RODLIKE PARTICLES .2. TERNARY-SYSTEMS [J].