J. Phys. II France
Volume 1, Numéro 11, November 1991
Page(s) 1331 - 1336
DOI: 10.1051/jp2:1991142
J. Phys. II France 1 (1991) 1331-1336

The effect of entanglements on the viscosity of semidilute polymer solutions

Y. Shiwa

The Physics Laboratories, Kyushu Institute of Technology Iizuka, Fukuoka 820, Japan

(Received 29 July 1991, accepted 18 September 1991)

The explicit crossover behavior of the polymer solution viscosity in the dilute and semidilute regimes is presented. The calculation is done incorporating two effects: (i) the gradual screening of both hydrodynamic and excluded-volume interactions, (ii) the entanglement constraint. The result shows a continuous change to a reptation-like asymptote.

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