and bChernihiv State Pedagogical University9 53 Sverdlova st., 14038 Chernihiv, Ukraine For liquid crystalline system MBBAEBBA + eutectic mixture of alkyl-and alkoxycyanobiphenyls. dielectric permittivity E was measured in isotropic, nematic and induced smectic-B phases as function of temperature and concentration. Strong positive deviations of E from additivity were reported in the concentration range where the induced SB phase was formed. These deviations persisted in the nematic and isotropic phases, suggesting a clear picture of intermolecular interactions in the system responsible for the smectic-B phase formation.

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