Role of kosmotrope-chaotrope interactions at micelle surfaces on the stabilization 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.authorTürkmen, Meriç
dc.contributor.authorCanıöz, Cihan
dc.contributor.authorFigueiredo Neto, Antonio Martins
dc.date.accessioned2021-06-23T19:42:51Z
dc.date.available2021-06-23T19:42:51Z
dc.date.issued2016
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Kimya Bölümüen_US
dc.description.abstractThree lyotropic quaternary systems of ionic surfactants were prepared to investigate the role of kosmotrope-chaotrope interactions at the micelle surfaces on stabilizing the different nematic phases. The ionic surfactants were potassium laurate (KL), sodium dodecylsulfate (SDS) and tetradecyltrimethylammonium bromide (TDTMABr), where KL is a kosmotrope surfactant, and others are chaotrope. The first system consisted of KL/decanol (DeOH)/water/alkali sulfate and the second of SDS/DeOH/water/alkali sulfate. The third system was prepared by adding sodium salts of chaotropic or kosmotropic anions to the primary mixture of TDTMABr/DeOH/water, separately. The characteristic textures of discotic nematic (N (D)), biaxial nematic (N (B)) and calamitic nematic (N (C)) phases were identified under polarizing light microscope. Laser conoscopy was employed to determine the uniaxial-to-biaxial phase transitions. The kosmotrope-kosmotrope or chaotrope-chaotrope interactions between the head groups of the surfactants and the ions of the electrolytes led to the stabilization of the N (D) phase. On the other hand, kosmotrope-chaotrope interactions stabilize the N (B) and/or N (C) phases.en_US
dc.identifier.doi10.1140/epje/i2016-16107-5
dc.identifier.issn1292-8941
dc.identifier.issn1292-895X
dc.identifier.issue107en_US
dc.identifier.pmid27837348en_US
dc.identifier.scopus2-s2.0-84994876828en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1140/epje/i2016-16107-5
dc.identifier.urihttps://hdl.handle.net/20.500.12491/8625
dc.identifier.volume39en_US
dc.identifier.wosWOS:000387916800001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorAkpınar, Erol
dc.institutionauthorTürkmen, Meriç
dc.institutionauthorCanıöz, Cihan
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofEuropean Physical Journal Een_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLyotropic Nematic Phasesen_US
dc.titleRole of kosmotrope-chaotrope interactions at micelle surfaces on the stabilization of lyotropic nematic phasesen_US
dc.typeArticleen_US

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