TY  - JOUR
T1  - Effect of Streptomycin Drug on the Surface and Micellization Properties of
Sodium Dodecylbenzyl Sulphate Surfactant
AU - H. Kareem, Sameer AU - M. Faris, Mena 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 22
SP  - 9755
EP  - 9759
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.9755.9759
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.9755.9759
KW  - Critical micelle concentration
KW  -conductivity
KW  -surface tension
KW  -sodium dodecylbenzyl sulphate
KW  -streptomycin
KW  -adsorption
AB  - The effect of Streptomycin (STMY) drug on the surface and micellar properties of Sodium Dodecylbenzyl Sulphate Surfactant (SDBS) have been investigated by surface tension and conductivity measurements at the temperature range 293-323 K. From these measurements, the Critical Micelle Concentration (CMC) T<sub>max</sub> (maximum surface excess) A<sub>min</sub> (minimum surface area per molecule) and &gamma; <sub>cmc</sub> (surface tension at the CMC) have been determined. Thermodynamic parameters (&Delta;G&deg;<sub>m</sub>, &Delta;H&deg;<sub>m</sub>, &Delta;S&deg;<sub>m</sub>) of the micelle formation were calculated from the temperature dependence on the CMC. The standard Gibbs free energies of adsorption &Delta;G&deg;<sub>ads</sub>) were also, evaluated and the results show that all the &Delta;G&deg;ads values are negative and their magnitudes reveal that micelle formation is less spontaneous than adsorption.
ER  -