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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7896
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dc.contributor.authorSrinivasan, M. Vijay-
dc.contributor.authorKannan, P.-
dc.contributor.authorRoy, A.-
dc.date.accessioned2022-02-18T05:05:30Z-
dc.date.available2022-02-18T05:05:30Z-
dc.date.issued2012-11-27-
dc.identifier.citationJournal of Polymer Science, Part A: Polymer Chemistry, 2012, Vol. 51, p936en_US
dc.identifier.issn0887-624X-
dc.identifier.issn1099-0518 (Online)-
dc.identifier.urihttp://hdl.handle.net/2289/7896-
dc.descriptionOpen Accessen_US
dc.description.abstractNew class of photo and electrically switchable azobenzene containing pendant bent-core liquid crystalline monomers (AZBM 1, 2, and 3) and their polymers (AZBP 1, 2, and 3) are reported. The synthesized precursors, monomers, and polymers were characterized by FT-IR, 1H, and 13C NMR spectroscopy. Thermal stability of polymers was examined by thermogravimetric analysis and revealed stable up to 260 °C. The mesophase transition of monomers and polymers are observed through polarized optical microscopy (POM) and further confirmed by differential scanning calorimetry (DSC). The electrically switching property of monomers and their polymers were studied by electro-optical method. Among the three monomers AZBM 1, 2, and 3, AZBM 1 and 2 exhibit antiferroelectric (AF) switching and AZBM 3 exhibits ferroelectric (F) switching behavior. On the other hand, low molecular weight polymers (AZMP 1, 2, and 3) show weak AF and F switching behavior. The photo-switching properties of bent-core azo polymers are investigated using UV-vis spectroscopy, trans to cis isomerization occurs around 25 s for AZBP-1 and 30 s for AZBP-2 and 3 in chloroform, whereas reverse processes take place around 80 and 90 s.en_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.urihttps://doi.org/10.1002/pola.26455en_US
dc.rights2012 Wiley Periodicals, Inc.en_US
dc.subjectazo polymersen_US
dc.subjectferroelectricityen_US
dc.subjectliquid-crystalline polymers (LCP)en_US
dc.titlePhoto and electrically switchable behavior of azobenzene containing pendant bent-core liquid crystalline polymersen_US
dc.typeArticleen_US
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