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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2621
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dc.contributor.authorKarat, P.P.-
dc.contributor.authorMadhusudana, N.V.-
dc.date.accessioned2007-06-06T07:49:53Z-
dc.date.available2007-06-06T07:49:53Z-
dc.date.issued1976-
dc.identifier.citationMolecular Crystals and Liquid Crystals, 1976, Vol.36, p51-64en
dc.identifier.issn1058-725X-
dc.identifier.urihttp://hdl.handle.net/2289/2621-
dc.descriptionRestricted Access.en
dc.description.abstractThe bend elastic constants (k33) and order parameters (S) derived from optical measurements in the nematic phase of pentlyl, hexyl, heptyl and octyl cyanobiphenyls (5CB, 6CB, 7CB and 8CB respectively) are reported. The odd-even effect is clearly seen in the K33 values of all four compounds and in the S values of the first three. 5CB, 6CB and 7CB show only the nematic mesophase but their elastic constants indicate the existence of smectic-like short range order. For example, even the lowest homologue, 5CB, does not obey the law k33 infin S2 given by the mean field throry. 7CB, has about the same order parameter as 5CB but a much higher elastic constant. 8CB, which shows a smectic A phase as well, exhibits a lower k33 than 7CB near the nematic-isotropic transition point but a pronounced pretransitional increase near the A-N transition.en
dc.format.extent511478 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherGordon and Breach Science Publishers.en
dc.relation.urihttp://dx.doi.org/10.1080/00268947608084830en
dc.rights1976 OPA (Overseas Publishers Association) N.V.en
dc.titleElastic and optical properties of some 4'-n-alkyl-4-cyanobiphenylsen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

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