Dielectric Studies for Dipole-Dipole Association of Mesogenic Molecules in Para-Xylene

Abstract

Results are reported for dipole-dipole association of mesogenic molecules in para-xylene solution. Measurements of Kirkwood correlation factors for solutions of 4-n-pentyl-4-cyanophenyl cyclohexane (PCH5) and 4-n-heptyl-4-cyanophenyl cyclohexane (PCH7) are interpreted in terms of new madel by Dunmur et al. ¹⁰ for dipole-association. Results suggest that the molecular association depends on molecular shape and polarizability anisotropy of the system.