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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4071
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dc.contributor.authorRajeswari, M.-
dc.contributor.authorAnanthaiah, J.-
dc.contributor.authorDabrowski, R.-
dc.contributor.authorSastry, V.S.S.-
dc.contributor.authorDhara, Surajit-
dc.contributor.authorSadashiva, B.K.-
dc.date.accessioned2011-08-09T05:43:14Z-
dc.date.available2011-08-09T05:43:14Z-
dc.date.issued2011-
dc.identifier.citationMolecular Crystals and Liquid Crystals, 2011, Vol.547, p39en
dc.identifier.issn1542-1406-
dc.identifier.issn1563-5287 (Online)-
dc.identifier.urihttp://hdl.handle.net/2289/4071-
dc.descriptionRestricted Access.en
dc.description.abstractWe measured rheological properties of cholesteryl nonanoate and its mixture with 40-octyloxy-4-cyanobiphenyl. In both systems, wider temperature range of blue phase under shear with anomalous increase in viscosity associated with non- Newtonian flow behavior has been observed. Shear thinning followed by Newtonian flow is found in cholesteric phase and non-Newtonian flow behavior at high shear rates is seen in smectic-A phase. In cholesteryl nonanoate a small peak in the viscosity at cholesteric to smectic-A transition along with a shear rate dependent viscosity at higher shear rate is attributed to the type-II character of the compound. We find that the type-II character of the compound is further enhanced by mixing a small amount (20 wt%) of 40-octyloxy-4-cyanobiphenyl in cholesteryl nonanoate. No significant change in the temperature dependent rheological behavior is observed at the twistgrain- boundary-A to smectic-A transition. It is suggested that the small anomalous peak in the viscosity just above the twist-grain-boundary-A phase is due the existence of chiral line liquid phase.en
dc.language.isoenen
dc.publisherTaylor & Francisen
dc.relation.urihttp://dx.doi.org/10.1080/15421406.2011.572507en
dc.rightsTaylor & Francisen
dc.subjectShearen
dc.subjecttype-II liquid crystalsen
dc.subjectviscosityen
dc.titleRheological properties of a chiral liquid crystal exhibiting type-II characteren
dc.typeArticleen
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