Mixtures of the first six members of homologous series 4,4'- di-n-alcoxyazoxybenzenes were investigated by DSC and HSM (heat stage microscopy) methods. A solid crystal (SC) form of the third member (C₃) of the series is found which is virtual for the pure substance and is real for mixtures with the homologous. It is shown that a type of admixture C_n changes relative stability of SC forms K_v, K₁, K₂ of the pure C₃. A eutectic manifestation of mixture (K₁ + K₂) is found. Four SC forms of C₃ have an equal enthalpy of transitions to a melt. Melting in the mesophase is accompanied by transformations of crystal structures.

Date Published: 27 June 2002
PDF: 5 pages
Proc. SPIE 4759, XIV Conference on Liquid Crystals: Chemistry, Physics, and Applications, (27 June 2002); doi: 10.1117/12.472175

Published in SPIE Proceedings Vol. 4759:
XIV Conference on Liquid Crystals: Chemistry, Physics, and Applications
Jolanta Rutkowska; Stanislaw J. Klosowicz; Jerzy Zielinski, Editor(s)