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VOLUME 25 (1977) | ISSUE 5 | PAGE 266
Viscoelastic relaxation of nematic liquid crystals in the region of the isotropic-nematic transitions
It is shown that in the region of the isotropic-nematic transition of MBBA and ZhK-440 the shear modulus and shear viscosity relax in the frequency range 70-300 kHz. The results are interpreted on the basis of the de Gennes theory of the relaxation of the short-range order parameter in the isotropic phase of nematic liquid crystals.