J. Phys. II France
Volume 3, Numéro 10, October 1993
|Page(s)||1581 - 1590|
J. Phys. II France 3 (1993) 1581-1590
Dynamics of telechelic ionomers. Can polymers diffuse large distances without relaxing stress ?L. Leibler1, M. Rubinstein2 and R. H. Colby2
1 Groupe de Physico-Chimie Théorique, E.S.P.C.I., 10 rue Vauquelin, 75231 Paris Cedex 05, France
2 Corporate Research Laboratories, Eastman Kodak Company, Rochester, New York 14650-2110, U.S.A.
(Received 8 April 1993, accepted 18 June 1993)
We consider dynamics of entangled telechelic ionomers in the limit of strong association, where there are no free chain ends. Stress relaxation occurs in such a system by an exchange between pairs of chain ends in the associated state. For complete relaxation of stress, an exchange event must take place on every entanglement strand. However, diffusion can occur on an arbitrarily shorter time scale, leading to the interesting result that chains can diffuse distances many times their coil size without relaxing stress.
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