Molecular associations in liquid crystalline alpha-cyanostylbenes

The results of investigation of molecular association in liquid crystalline alpha-cyanostylbenes are reported. The dielectric dispersion of alpha-cyan ostylbenes and it solutions doped weakly polar nematic mixture are investig ated. The real and imaginary parts of dielectric permitivities epsilon(\) a nd epsilon(perpendicular to) of solutions with several concentrations have been measured in frequency range 1kHz-100MHz. The one dispersion region of epsilon(\) and epsilon(perpendicular to) of pure alpha-cyanostylbenes were observed. In contrast to pure alpha-cyanostylbenes two separate dispersions of Debye type were found for parallel component of the dielectric permitiv ity epsilon(\) for solutions.