Semidilute solutions of SGPLCs

In semidilute solutions the macromolecules are able to interpenetrate and give rise to a network-like structure temporarily. The properties of these more concentrated solutions differ remarkably from those of dilute solutions due to the strong intermolecular interactions of the macromolecules. In LS measurements the single macromolecule is no longer involved. Structures and thermodynamic properties of the solutions due to interactions between the macromolecules can be investigated. For the analysis of static LS measurements in this 

Only for small values of X do the experimental data lie on the theoretical curve for flexible chain molecules. For values of X greater than 0.1 the data show deviations. First of all, as typical for stiff macromolecules or for polydispersed samples, the measured values are always smaller than those predicted theoretically for linear flexible macromolecules. Although this negative deviation seems to be relatively 

Nevertheless, for three samples of a SGPLC that differ remarkably the molar mass (M = 54 lOOgmol 168 000gmol  

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