Effect of the surfactant alkyl chain length on the stabilisation of lyotropic nematic phases

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dc.authorid0000-0002-6339-8699en_US
dc.authorid0000-0002-9854-5177en_US
dc.contributor.authorAkpınar, Erol
dc.contributor.authorCanıöz, Cihan
dc.contributor.authorTürkmen, Meriç
dc.contributor.authorReis, Dennys
dc.contributor.authorFigueiredo Neto, Antonio Martins
dc.date.accessioned2021-06-23T19:50:21Z
dc.date.available2021-06-23T19:50:21Z
dc.date.issued2018
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Kimya Bölümüen_US
dc.description.abstractLyotropic quaternary mixtures of potassium alkanoates (KCx) and sodium alkyl sulphates (NaCxS), where x is the number of carbon atoms in their alkyl chains, were prepared to investigate the effect of the surfactant alkyl chain length on the stabilisation of lyotropic nematic phases. The lyotropic mixtures investigated were formed by the dissolution of KCx (NaCxS) surfactants in the mixture of Rb2SO4/1-decanol/water (Na2SO4/1-decanol/water), separately. The uniaxial-to-biaxial nematic phase transitions were identified from the temperature dependence of the birefringences of the nematic phases by means of laser conoscopy. The micelle dimensions were obtained from small-angle X-ray scattering measurements. It was observed that the increase in the surfactant alkyl chain length causes the micellar growth in the plane perpendicular to the main amphiphile bilayer. The surfactant alkyl chain length plays a key role on the shape anisotropy of micelles, which triggers the orientational fluctuations that are responsible for the stabilisation of the different lyotropic nematic phases. [GRAPHICS] .en_US
dc.identifier.doi10.1080/02678292.2017.1309698
dc.identifier.endpage229en_US
dc.identifier.issn0267-8292
dc.identifier.issn1366-5855
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85016498139en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage219en_US
dc.identifier.urihttps://doi.org/10.1080/02678292.2017.1309698
dc.identifier.urihttps://hdl.handle.net/20.500.12491/9762
dc.identifier.volume45en_US
dc.identifier.wosWOS:000425784500005en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAkpınar, Erol
dc.institutionauthorCanıöz, Cihan
dc.language.isoenen_US
dc.publisherTaylor & Francis Ltden_US
dc.relation.ispartofLiquid Crystalsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLyotropic Nematic Phasesen_US
dc.subjectSurfactant Alkyl Chain Lengthen_US
dc.subjectPhase Transitionen_US
dc.subjectIBM model of nematic phasesen_US
dc.subjectLaser Conoscopyen_US
dc.subjectSmall-angle X-ray Scatteringen_US
dc.titleEffect of the surfactant alkyl chain length on the stabilisation of lyotropic nematic phasesen_US
dc.typeArticleen_US

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