Phase Transition Studies in Some 4‐n‐Alkyl‐N‐(4‐n‐Alkyloxy‐Benzylidene)‐Anilines

Abstract

Abstract The results of phase transition investigations in two homologous series of 4‐n‐alkyl‐N‐(4‐n‐alkyloxy‐benzylidene)‐anilines, viz., 60. m and 70. m compounds using thermal microscopy, differential scanning calorimetry, density and refractive index measurements are reported. The nature of the order of various phase transitions and the pre‐transitional effects in the fluctuation dominated non‐linear regions in the vicinity of IN, IA and NA transitions are discussed in the light of the available data on other n O. m compounds.