CONDUCTOMETRIC STUDIES ON THE EFFECT OF TEMPERATURE AND TETRAMETHYLAMMONIUM BROMIDE SALT ON THE MICELLIZATION OF CETYLTRIMETHYLAMMONIUM BROMIDE IN AQUEOUS MEDIUM

Authors : Olaseni ESAN

Pages : 246-252

Doi:10.5541/ijot.5000130524

View : 10 | Download : 6

Publication Date : 2015-07-16

Article Type : Research Paper

Abstract :The subject of this study concerns the effect of temperature and Cetyltrimethyl ammonium bromide insert ignore into journalissuearticles values(CTABr); in the presence of tetramethylammonium bromide [insert ignore into journalissuearticles values(Me);4N+Br-] at different temperature using conductometric method. CTABr showed a remarkable decrease in critical micelle concentration insert ignore into journalissuearticles values(CMC); in the presence of [insert ignore into journalissuearticles values(Me);4N+Br-]. The CMC values reduced to a certain minimum in all cases, with increase in the system temperature at different concentration of [insert ignore into journalissuearticles values(Me);4N+Br-]. The thermodynamic parameters insert ignore into journalissuearticles values( , and ); for the micelle system were estimated by applying the phase separation model while the data obtained allowed access to their usability on the micellization process. Enthalpy – entropy compensation was observed, with a constant compensation temperature of 296K.
Keywords : thermodynamic parameter, micellization, enthalpy entropy compensation, tetramethylammonium bromide, hydrophobic