The novel poly mesomorphic homologous series was synthesized to understand the mesomorphic behaviour of compounds with respect to molecular structure. Present series was consisting 11 homologues which were completely smectogenic and along with poly-mesomorphism. In smectogenic texture it shows some broken fane like texture which represent the presence of smectic-A texture along with smectic-C. Mesomorphic behaviour was measured by polarizing optical microscope with heating stage. Average thermal stability of series is 130.8 °C and 140.7 °C for Sm-N/I and N-I respectively along with middle order melting type and the transition curve behaves in normal manner.
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