J. Phys. II France
Volume 3, Numéro 9, September 1993
Page(s) 1299 - 1303
DOI: 10.1051/jp2:1993201
J. Phys. II France 3 (1993) 1299-1303

Interface motion in semidilute polymer solutions

Akira Onuki

Department of Physics, Kyoto University, Kyoto 606, Japan

(Received 17 May 1993, accepted in final form 19 July 1993)

Linear viscoelastic effects are examined in semidilute polymer solutions in macroscopic two-phase coexistence. If the temperature T or the pressure p is oscillated in time, the interface motion exhibits gel-like behavior at high frequencies and fluid-like behavior at low frequencies. We also study transient relaxation after a step-wise change of T or p. We propose such experiments to check the validity of fundamental hypotheses on viscoelasticity in polymer solutions.

46.60B - 64.70J

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