102141-22-0Relevant academic research and scientific papers
Density Studies in N-(p-n-Butoxybenzylidene)-p-n-Butylaniline
Rao, J. V.,Rao, N. V. S.,Pisipati, V. G. K. M.,Murty, C. R. K.
, p. 1157 - 1160 (2007/10/02)
The density ρ of N-(p-n-butoxybenzylidene) p-n-butylaniline (BBBA) has been measured as a function of temperature from SH to isotropic liquid phase.The compound exhibits three smectic and two nematic phases.The phases assigned are SH SB SA NC NO I.The change of ρ across the transition SH - SB is more predominant than the other transitions.The SH - SB, SA - NC, and NC - NO transitions have been observed for the first time from density studies.The variation of ρ with temperature and the calculated thermal expansion coeff icients in liquid crystalline region suggest that all the transitions are of first order.It is suggested that the transition of NC - NO at 59.4 deg C is cybotactic nematic to ordinary nematic phase.
