Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6000
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dc.contributor.authorVijayaraghavan, D.-
dc.date.accessioned2014-10-16T07:09:00Z-
dc.date.available2014-10-16T07:09:00Z-
dc.date.issued2014-11-
dc.identifier.citationJournal of Molecular Liquids, 2014, Vol.199, p 128-132en
dc.identifier.issn0167-7322-
dc.identifier.urihttp://hdl.handle.net/2289/6000-
dc.descriptionRestricted Access.en
dc.description.abstractWe have carried out small angle X-ray scattering (SAXS) studies as a function of temperature on 0.01 wt.% single-walled carbon nanotubes (SWCNTs) dispersed lyotropic liquid crystal (LLC) system consisting of 25 wt.% cetyltrimethylammonium bromide (CTAB) in water. This LLC system exhibits crystalline surfactant + water (Cr), nematic (N), hexagonal (H) and isotropic (I) phases on heating. Our SAXS pattern revealed that in the crystalline + water phase of the LLC, the doped CNTs exhibit 1-D ordering. In the nematic and hexagonal phases of the LLC, the CNTs exhibit 2-D hexagonal ordering. In the isotropic phase, there are domains of CNTs and within each domain, the nanotubes exhibit 1-D ordering. A plot of d-spacing of the CNTs as a function of temperature showed peaks at the phase transition temperatures of the LLC. We have also carried out optical birefringence and electrical conductivity measurements of the composite as a function of temperature. Interestingly, they also showed peaks at the phase transition temperatures. This indicates a correlation between the d-spacing of the CNTs and the anomalous increase in the birefringence and conductivity of the composite at the phase transition temperatures.en
dc.language.isoenen
dc.publisherElsevier B.Ven
dc.relation.urihttp://dx.doi.org/10.1016/j.molliq.2014.08.022en
dc.rights2014 Elsevier B.V.en
dc.subjectLyotropic liquid crystalen
dc.subjectCarbon nanotubeen
dc.subjectSelf-assemblyen
dc.subjectSAXSen
dc.subjectBirefringenceen
dc.titleSelf-assembled ordering of single-walled carbon nanotubes in a lyotropic liquid crystal systemen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

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