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Ultrasonic wave propagation in a polymerizing medium


It is shown that by monitoring the propagation velocities of longitudinal and shear ultrasonic waves in a polymerizing system it is possible to keep a continuous track on the conversion of the monomer, estimate the effect of various technological factors — sensitizing additives, dose rate, absorbed dose — and trace the behavior of the dynamic moduli of elasticity and the dynamic Poisson's ratio of the polymeric material. Relations between the wavelength and the transverse dimension of the polystyrene specimens that satisfy the conditions for determining the speed of ultrasound in an infinite medium and in a rod are obtained.

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Additional information

Institute of Wood Chemistry, Academy of Sciences of the Latvian SSR, Riga. Translated from Mekhanika Polimerov, No. 2, pp. 204–208, March–April, 1974.

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Goldshteins, A.Y., Dolatsis, Y.A. & Zavitska, R.F. Ultrasonic wave propagation in a polymerizing medium. Polymer Mechanics 10, 176–179 (1974).

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  • Polystyrene
  • Wave Propagation
  • Dose Rate
  • Polymeric Material
  • Propagation Velocity