Abstract
The conditions governing the onset of unstable flow when concentrated solutions of monodisperse polybutadiene in α-methylnaphthalene are extruded through a capillary have been investigated. The critical values of the parameters corresponding to these conditions have been found. It is shown that unstable flow of the "elastic turbulence" type is associated with transition of the system to the forced high-elastic state.
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Additional information
Topchiev Institute of Petrochemical Synthesis, Academy of Sciences of the USSR, Moscow. Translated from Mekhanika Polimerov, No. 1, pp. 132–137, January–February, 1973.
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Blinova, N.K., Sergeenkov, S.I., Malkin, A.Y. et al. Viscoelastic properties and unstable flow of monodisperse polybutadiene solutions. Polymer Mechanics 9, 113–118 (1973). https://doi.org/10.1007/BF00856020
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DOI: https://doi.org/10.1007/BF00856020