Kuhnian regime

The Kuhnian regime for an observable G , function of the interaction parameter z, is often characterized by a power law in z. In this case, the effective exponent 

Experiments made in this limit are crucial, because they determine universal constants related to the polymer state in good solvent. The interval z za defining the asymptotic regime depends on the required precision. We shall be interested in the situation where the exponent dln /d lnz has 3 significant 

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We shall start by establishing a correspondence between physical and theoretical parameters. Next, we shall study the intermediate regime (moderately long chains) and then the Kuhnian regime (very long chains)... 

The semi-dilute regime corresponds to the domain CXd 1. In this domain Ilfi is expected to depend only on the monomer concentration. As was pointed out in Section 2.1, the number of monomers of a chain is proportional to X11", and consequently, in this Kuhnian limit, the monomer concentration must be defined as the Kuhnian concentration. 

The study of the dependence of the screening length on temperature is also very significant. We know that in the semi-dilute regime, the screening length e is proportional to the Kuhnian overlap length. By definition... 

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