Thermodynamics of non-ionic surfactant Triton X-100-cationic surfactants mixtures at the cloud point

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dc.contributor.authorBatigoc, Cigdem
dc.contributor.authorAkbas, Halide
dc.contributor.authorBoz, Mesut
dc.date.accessioned2024-06-12T10:56:40Z
dc.date.available2024-06-12T10:56:40Z
dc.date.issued2011
dc.departmentTrakya Üniversitesien_US
dc.description.abstractThis study investigates the effects of gemini and conventional cationic surfactants on the cloud point (CP) of the non-ionic surfactant Triton X-100 (TX-100) in aqueous solutions. Instead of visual observation, a spectrophotometer was used for measurement of the cloud point temperatures. The thermodynamic parameters of these mixtures were calculated at different cationic surfactant concentrations. The gemini surfactants of the alkanediyl-alpha-omega-bis (alkyldimethylammonium) dibromide type, on the one hand, with different alkyl groups containing m carbon atoms and an ethanediyl spacer, referred to as m-2-m (m = 10, 12, and 16) and, on the other hand, with -C-16 alkyl groups and different spacers containing s carbon atoms, referred to as 16-s-16 (s = 6 and 10) were synthesized, purified and characterized. Additions of the cationic surfactants to the TX-100 solution increased the cloud point temperature of the TX-100 solution. It was accepted that the solubility of non-ionic surfactant containing polyoxyethylene (POE) hydrophilic chain was a maximum at the cloud point so that the thermodynamic parameters were calculated at this temperature. The results showed that the standard Gibbs free energy (Delta G(cp)(o)), the enthalpy (Delta H-cp(o)) and the entropy (Delta S-cp(o)) of the clouding phenomenon were found positive in all cases. The standard free energy (Delta G(cp)(o)) increased with increasing hydrophobic alkyl chain for both gemini and conventional cationic surfactants; however, it decreased with increasing surfactant concentration. (C) 2011 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipTrakya University [TUBAP-922, TUBAP-783]en_US
dc.description.sponsorshipThe authors gratefully acknowledge the financial supports of the Trakya University Research Fund (TUBAP-922 and TUBAP-783).en_US
dc.identifier.doi10.1016/j.jct.2011.06.005
dc.identifier.endpage1803en_US
dc.identifier.issn0021-9614
dc.identifier.issn1096-3626
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-84862498992en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1800en_US
dc.identifier.urihttps://doi.org/10.1016/j.jct.2011.06.005
dc.identifier.urihttps://hdl.handle.net/20.500.14551/19882
dc.identifier.volume43en_US
dc.identifier.wosWOS:000295442500004en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAcademic Press Ltd- Elsevier Science Ltden_US
dc.relation.ispartofJournal Of Chemical Thermodynamicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCloud Pointen_US
dc.subjectGemini Surfactanten_US
dc.subjectTriton X-100en_US
dc.subjectThermodynamic Parameteren_US
dc.subjectGemini Surfactantsen_US
dc.subjectAnionic Surfactantsen_US
dc.subjectOrganic Additivesen_US
dc.subjectAmphiphilic Drugen_US
dc.subjectBehavioren_US
dc.subjectElectrolytesen_US
dc.subjectMicellesen_US
dc.subjectLengthen_US
dc.titleThermodynamics of non-ionic surfactant Triton X-100-cationic surfactants mixtures at the cloud pointen_US
dc.typeArticleen_US

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