INDUCED SMECTIC PHASES - DENSITIES OF BINARY MIXTURES OF 4,4 prime -DIALKYLAZOXYBENZENES WITH 4-PENTYL-4 prime -CYANOBIPHENYL (PCB).

Densities of binary mixtures of 4,4 prime -dipentylazoxybenzene (DPAB) and 4-ethyl-4 prime -pentulazoxybenzene (EPAB) with 4-pentyl-4 prime -dyanobiphenyl (PCB) were measured over the temperature range of 25 to 80 degree C and in the middle area of concentrations. Isothermal volumes of mixing V**s (equal to the excess volume V**E when both pure components and solution are in the same phase) were also calculated from interpolated molar volumes. Isobaric thermal expansion coefficients were also calculated for one of the mixture concentrations EPAB plus PCB. The presence of a molecular A-B complex was confirmed.