The effect of temperature on thermodynamic parameters of micellization of some surfactants

Noudeh, G. D. and Housaindokht, M. and Bazzaz, B. S. F. (2007) The effect of temperature on thermodynamic parameters of micellization of some surfactants. Journal of Applied Sciences, 7 (1). pp. 47-52.

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Abstract

The micellization of anionics surfactants (SDS, sodium dodecyl sulphate and SU, surfactin) and cationic surfactants (BC, benzalkonium chloride, TTAB, tetradecyltrimethylammonium bromide and HTAB, hexadecyltrimethylammonium bromide) were investigated at various temperatures using a du Nouy ring tensiometer. The cmc decreased to a certain minimum and then increased with the temperature, displaying a U-shaped behavior. This behavior was analyzed using a power-law equation. The thermodynamic parameters of micellization, ΔGm, ΔHm and ΔSm were obtained at different temperatures. © 2007 Asian Network for Scientific Information.

Item Type: Article
Additional Information: Cited By :21 Export Date: 16 February 2020 Correspondence Address: Noudeh, G.D.; Department of Pharmaceutics, School of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
Uncontrolled Keywords: Critical micelle concentration (cmc) Power-law exponent Micellization Surfactant Surfactin Thermodynamic parameters Cationic surfactants Critical micelle concentration Dyes Surface active agents Thermodynamics Benzalkonium chloride Effect of temperature Hexadecyl trimethyl ammonium bromide Power law exponent Sodium dodecyl sulphate Tetradecyl trimethyl ammonium bromides Thermodynamic parameter Temperature
Subjects: QU Biochemistry
QV pharmacology
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib7 lib7
Date Deposited: 04 May 2020 04:58
Last Modified: 04 May 2020 04:58
URI: http://eprints.mums.ac.ir/id/eprint/17088

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