Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/6000
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Vijayaraghavan, D. | - |
dc.date.accessioned | 2014-10-16T07:09:00Z | - |
dc.date.available | 2014-10-16T07:09:00Z | - |
dc.date.issued | 2014-11 | - |
dc.identifier.citation | Journal of Molecular Liquids, 2014, Vol.199, p 128-132 | en |
dc.identifier.issn | 0167-7322 | - |
dc.identifier.uri | http://hdl.handle.net/2289/6000 | - |
dc.description | Restricted Access. | en |
dc.description.abstract | We 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.iso | en | en |
dc.publisher | Elsevier B.V | en |
dc.relation.uri | http://dx.doi.org/10.1016/j.molliq.2014.08.022 | en |
dc.rights | 2014 Elsevier B.V. | en |
dc.subject | Lyotropic liquid crystal | en |
dc.subject | Carbon nanotube | en |
dc.subject | Self-assembly | en |
dc.subject | SAXS | en |
dc.subject | Birefringence | en |
dc.title | Self-assembled ordering of single-walled carbon nanotubes in a lyotropic liquid crystal system | en |
dc.type | Article | en |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2014_Journal of Molecular Liquids_V199_p128.pdf Restricted Access | Restricted Access | 700.74 kB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.