Dynamic light scattering studies on a lyotropic discotic nematic liquid crystal

Agarwal, Amit K.; Suresh, K.A.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2287

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DC Field	Value	Language
dc.contributor.author	Agarwal, Amit K.	-
dc.contributor.author	Suresh, K.A.	-
dc.date.accessioned	2007-04-24T11:25:31Z	-
dc.date.available	2007-04-24T11:25:31Z	-
dc.date.issued	2005-09-20	-
dc.identifier.citation	Proceedings of the SPIE, 2005, Vol.5947, p59470A	en
dc.identifier.issn	0277-786X	-
dc.identifier.uri	http://hdl.handle.net/2289/2287	-
dc.description	Restricted Access.	en
dc.description.abstract	We have measured the twist viscoelastic coefficient of a lyotropic nematic liquid crystal composed of disc-like micelles of cesium perfluoro-octanoate (CSPFO) in water employing dynamic light scattering. We find that the twist viscoelastic coefficient increases with increase in temperature in the nematic phase. We have studied the viscoelastic response of the medium with the concentration of CSPFO in water. Twist viscoelastic coefficient rapidly increases with the concentration of CSPFO in water at a given reduced temperature. We have estimated the activation energy associated with the twist dynamics. We find that the activation energy is nearly independent of the concentration of CSPFO in water. We have also studied the effects of doping polyethylene glycol polymer on the viscoelasticity of CSPFO-water system.	en
dc.format.extent	294595 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	SPIE--The International Society for Optical Engineering	en
dc.relation.uri	http://dx.doi.org/10.1117/12.622094	en
dc.rights	2005 SPIE--The International Society for Optical Engineering	en
dc.title	Dynamic light scattering studies on a lyotropic discotic nematic liquid crystal	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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