Molecular interaction in binary surfactant mixtures containing alkyl polyglycoside

Surface tensions were measured for several binary mixtures of a multidegree polymerized alkyl polyglycoside, C 12G 1.46, with different types of surfactants in 0.1 M NaCl at 25 °C. Based on regular solution theory, using a dimensional crystal model and a phase separation model, the molecule exchange...

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Bibliographic Details
Published in:Journal of colloid and interface science 2005-10, Vol.290 (2), p.598-602
Main Authors: Wang, Zhong-Ni, Li, Gan-Zuo, Zhang, Gao-Yong, Diao, Zhao-Yu, Chen, Lu-Sheng, Wang, Zheng-Wu
Format: Article
Language:English
Subjects:
Alkylpolyglycoside
Chemistry
Ethylene Glycols - chemistry
Exact sciences and technology
General and physical chemistry
Glycosides - chemistry
Micelles
Molecular Structure
Molecule exchange energy
Particle Size
Polyethylene Glycols - chemistry
Quaternary Ammonium Compounds - chemistry
Siloxanes - chemistry
Sulfonic Acids - chemistry
Surface Tension
Surface-Active Agents - chemistry
Surfactant interaction
Surfactant mixture
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Summary:Surface tensions were measured for several binary mixtures of a multidegree polymerized alkyl polyglycoside, C 12G 1.46, with different types of surfactants in 0.1 M NaCl at 25 °C. Based on regular solution theory, using a dimensional crystal model and a phase separation model, the molecule exchange energy in mixed monolayer formation ( ɛ) and mixed micellization ( ɛ m ) were determined. Surfactants used in the mixtures with C 12G 1.46 in this study are C 12E 3S (trioxyethylenated dodecyl sulfonate), C 12TAC (dodecyl trimethylammonium chloride), BE-6 (hexaoxyethylenated trisiloxane surfactant), and TMN-6 (hexaoxyethylenated-2,6,8-trimethylnonanol). The mixtures show exchange energy in mixed monolayer formation ( ɛ) and mixed micellization ( ɛ m ) ranging from −660 to −1410 J/mol, indicating a decrease in surface energy upon mixing. The decreases in surface energy are in the order C 12G 1.46/C 12E 3S > C 12G 1.46/C 12TAC, C 12G 1.46/C 12TAC > C 12G 2/C 12TAC and C 12G 1.46/BE-6 > C 12G 1.46/TMN-6. The ability of the mixed monolayer formation relative to the mixed micelle formation of the same binary mixture, measured by the ( ɛ − ɛ m) values, is in the order C 12G 1.46/BE-6 > C 12G 1.46/TMN-6 > C 12G 1.46/C 12E 3S→0 > C 12G 1.46/C 12TAC.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2005.04.057