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Experimental results of studying low-frequency (74 kHz) shear elasticity of polymer liquids by the impedance method (analogous to the Mason method) are presented. A free-volume thick liquid layer is placed on the horizontal surface of a piezoelectric quartz crystal with dimensions 34.7 × 12 × 5.5 cm. The latter performs tangential vibrations at resonance frequency. The liquid layer experiences shear...
Experimental data for the dependence of the low-frequency (105 Hz) shear elasticity of diethylene glycol on the shear deformation angle have been presented. At small shear angles, the range of linear elasticity has been observed, which narrows with rising strain. The effective viscosity behaves similarly.
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