Achiral bent-core azo compounds: observation of photoinduced effects in an antiferroelectric tilted smectic mesophase |
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| Authors: | Veena Prasad Corresponding author Antal Jákli |
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| Affiliation: | 1. Centre for Liquid Crystal Research , P.B.No.1329, Jalahalli, Bangalore – 560 013, India;2. Liquid Crystal Institute , Kent State University , Kent, OH 44242, USA |
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| Abstract: | We report the synthesis and physical properties of four novel bent-core compounds, containing an azo linkage and alkyl terminal chains. It is found that, except for the lowest homologue, all the materials are liquid crystalline, exhibiting columnar or tilted polar smectic phases. In one of the compounds a reversible photoinduced variation of the spontaneous polarization of the antiferroelectric state was observed. |
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| Keywords: | polymer-dispersed liquid crystals silane reverse-mode polymer-dispersed liquid crystals off-axis haze surface energy |
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