PHASE TRANSITIONS IN COLLOIDAL SYSTEMS PART I: REFRACTOMETRIC STUDY OF THE BINARY SYSTEM SDS+WATER OR PENTANOL-1+WATER AND THE TERNARY SYSTEM WATER+SDS+PENTANOL-1 AT 298.15 K. |
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| Authors: | A. CHAHTI M. BOUKALOUCh J.P. DUMAS A. EL KINANI |
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| Affiliation: | 1. Laboratoire de Thermodynamrque el Energetique, Faculte des Sciences , Avenue Ibn Batouta 6.P. 1014, RABAT, MAROC;2. Laboratoire de Thermodynamique et Energétique, Faculté des Sciences - Avenue de I'Universite , PAU, 64000, FRANCE |
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| Abstract: | The monophasic ranges for the binary systems water+SDS and water+pentanoM and for the ternary system water+SDS+pentanoM has been studied by means of refractametric experiments at 298 K. The curves of refractometric index versus the composition of the system, has shown the existence of several transitions labeled successive critic micellar concentrations. These transitions are detected by a change of the variation of the refractive index. We have evidenced the very importance of the pentanol-1 in these amphiphilic solutions, acting as a surfactant or as an oil according the concentration. For these systems it is passible to better understand the phase inversion phenomena. At last, we present the phase diagram indicating the concentration range of the different microstructures. |
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| Keywords: | Flower‐like ZnO nanorod gemini surfactant hydrothermal |
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