DETERMINATION OF THE DYNAMIC CHARACTERISTICS OF LIQUID-CRYSTALLINE POLYMERIC SYSTEMSV. B. Nemtsov,a E. V. Korobko,b A. V. Kondratenko, a I. I. Globa,a P. A. Filipenkov,c and E. B. Kaberdinaa UDC 532.135.531.212 A theoretical description of the dynamic phenomena in liquid-crystalline polymeric systems in periodic mechanical disturbances in terms of the shear modulus and the loss modulus has been given. The rheological characteristics (dynamic viscosity, accumulation modulus, loss modulus, and others) of a synthesized sample of a liquid-crystalline polymeric system - aromatic polyamide - and the critical concentration of its transition from the isotropic state to a liquid-crystalline phase have been determined experimentally. a Belarusian State Technological University, Minsk, Belarus; bA. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, Minsk, Belarus; cInstitute of Applied Mechanics, Russian Academy of Sciences, Moscow, Russia. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 3, pp. 59-63, May-June, 2003. Original article submitted December 5, 2002.