Abstract
Shear moduli are measured by the reflection method for many polymer-toluene solutions. The results have good agreement with theoretical values by Rouse and Lamb. Longitudinal velocity and absorption are measured for poly(vinylisobuthylether) solution in toluene by the interferometric method. Comparing both moduli, it is found that the ratio of the dynamic volume viscosity to the dynamic shear one is 20–40. The phenomena are discussed on the basis of several theories and found to be well described by the concentration fluctuation theory by V. P. Romanov and V. A. Solove’ev.
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Yoshizaki, H. Ultrasonic Viscoelasticity and Excess Absorption in Polymer Solution. Polym J 21, 905–913 (1989). https://doi.org/10.1295/polymj.21.905
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DOI: https://doi.org/10.1295/polymj.21.905
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