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M. Vijay Srinivasan, P. Kannan and A. Roy Photo and electrically switchable behavior of azobenzene containing pendant bent-core liquid crystalline polymers Journal of Polymer Science Part A: Polymer Chemistry 51

Article first published online: 27 NOV 2012 | DOI: 10.1002/pola.26455

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A new class of photo- and electrically switchable azobenzene containing side-chain bent-core liquid crystalline monomers (AZBM 1-3) and their polymers (AZBP 1-3) were prepared. All the monomers demonstrate SmCP phase and their respective polymers show smectic phase with grainy like textures. Among the three monomers, AZBM-1 & 2 exhibit antiferroelectric (AF) switching and AZBM-3 exhibits ferroelectric (F) switching behavior. On the other hand, low molecular weight AZMP-1, 2 & 3 show weak AF and F switching behavior. The polymers show UV and visible photo-switching properties and they are also thermally reversible.

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