Guest-host interaction of some chloroanthraquinone dyes doped in liquid crystalline matrix and effect of addition of carbon nanotube

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dc.authorid0000-0001-8676-6768
dc.contributor.authorŞen, Eylem
dc.contributor.authorKaya, Nihan
dc.contributor.authorAlıcılar, Ahmet
dc.date.accessioned2019-05-10T09:39:37Z
dc.date.available2019-05-10T09:39:37Z
dc.date.issued2013
dc.departmentHitit Üniversitesi, Mühendislik Fakültesi, Kimya Mühendisliği Bölümü
dc.description.abstractLiquid crystals (LCs) are commonly used in displays. For practical guest-host applications, it is important to choose dyes with a high ability of orientation in the liquid crystal matrix. In this work, two different nematic liquid crystals (E7 and ZLI-1132) were separately doped (1% m/m) with four different dyes (1-chloro, 2-chloro, 1,5-dichloro and 1,8-dichloro anthraquinone). Their solubilities, textures, phase transition temperatures and order parameters were determined. At the second stage, carbon nanotubes (CNTs) were added (0.05% m/m) to these solutions and the same parameters except solubilities were studied again. Although the solubilities of dyes in the liquid crystal ZLI-1132 were lower than those of E7, the order parameters were much higher. Addition of carbon nanotubes as dopant resulted in an increase in order parameter. Nematic/isotropic microphase separation in doped liquid crystal samples was detected by polarised microscopy. Determination of both phase transition temperatures and phase type was done by temperature dependent texture investigations between crossed polarisers. The dyes and CNTs did not significantly destabilise the mesomorphic phase of nematic hosts. When passing a phase transition, characteristic textures and structures changed with the temperature increasing and decreasing. The nematic-isotropic transition occurred in several pictures (textures). An appreciable change in textures was not observed with the addition of dopant(s) when compared with pure liquid crystal textures. © 2013 Elsevier B.V.
dc.identifier.citationŞen, E., Kaya, N., & Alıcılar, A. (2013). Guest–host interaction of some chloroanthraquinone dyes doped in liquid crystalline matrix and effect of addition of carbon nanotube. Journal of Molecular Liquids, 186, 33-38.
dc.identifier.doi10.1016/j.molliq.2013.05.008
dc.identifier.endpage38en_US
dc.identifier.issn0167-7322
dc.identifier.scopusqualityQ1
dc.identifier.startpage33en_US
dc.identifier.urihttps://doi.org/10.1016/j.molliq.2013.05.008
dc.identifier.urihttps://hdl.handle.net/11491/740
dc.identifier.volume186en_US
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.relation.ispartofJournal of Molecular Liquids
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCarbon Nanotubeen_US
dc.subjectChloroanthraquinone Dyeen_US
dc.subjectGuest-Host Systemsen_US
dc.subjectNematic Liquid Crystalen_US
dc.subjectOrder Parameteren_US
dc.subjectPhase Transitionen_US
dc.titleGuest-host interaction of some chloroanthraquinone dyes doped in liquid crystalline matrix and effect of addition of carbon nanotube
dc.typeArticle

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