Dynamics of polymers in dilute solutions : an explanation of anomalous indices by cross-over effects

It is shown that the dynamical properties of long polymers made of N links, in solutions, converge much more slowly to the asymptotic limit (N → oo) than the static properties. This effect, which has a simple origin, explains why dynamical measurements of critical indices lead to results which seem to disagree with static measurements and recent theories.

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