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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3348
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dc.contributor.authorNayak, Alpana-
dc.contributor.authorSuresh, K.A.-
dc.contributor.authorPal, Santanu Kumar-
dc.contributor.authorKumar, Sandeep-
dc.date.accessioned2007-11-21T11:09:08Z-
dc.date.available2007-11-21T11:09:08Z-
dc.date.issued2007-08-31-
dc.identifier.citationJournal of Physical Chemistry B, 2007, Vol.111, p11157 -11161en
dc.identifier.issnE-ISSN: 1520-5207-
dc.identifier.issnP-ISSN(s): 1089-5647; 1520-6106-
dc.identifier.urihttp://hdl.handle.net/2289/3348-
dc.descriptionRestricted Access.en
dc.description.abstractDiscotic molecules are known to form highly anisotropic structures at the air-water (A-W) interface. We have studied two novel ionic discotic mesogenic molecules, viz., pyridinium tethered with hexaalkoxytriphenylene with bromide counterion (Py-Tp) and imidazolium tethered with hexaalkoxytriphenylene with bromide counterion (Im-Tp) at A-W and air-solid interfaces. The monolayer phases were investigated at the A-W interface employing surface manometry and Brewster angle microscopy techniques. They indicate a uniform monolayer phase which shows negligible hysteresis on expanding and compressing. Also, in both the systems the collapsed state completely reverts to the monolayer state. These monolayer films transferred at different surface pressures by Langmuir-Blodgett technique were studied by employing atomic force microscopy. The topographies of these films transferred at the low and high surface pressure region of the isotherm indicate a transformation of the monolayer from face-on to edge-on structure.en
dc.format.extent477351 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherAmerican Chemical Societyen
dc.relation.urihttp://dx.doi.org/10.1021/jp073196z S1520-6106(07)03196-3en
dc.rights2007 American Chemical Societyen
dc.titleFilms of Novel Mesogenic Molecules at Air-Water and Air-Solid Interfacesen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

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