Abstract
We report here bent shape calamitic thermotropic liquid crystal derivatives of 4-amino acetophenone. Compounds were designed having both chalcone and Schiff base as central linkages with various terminal alkoxy chains. All the compoundswere synthesized and well characterized. Compounds were screened for their mesomorphic properties using polarizing optical microscope under heating and cooling cycles. Thermograms of all the compounds were studied using differential scanning calorimetry to get phase transition temperatures and enthalpy. Compounds with chain length of eight to twelve carbons showed nematic mesophase. Compounds with higher chain length showed smectic A mesophase under both heating and cooling cycles.
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