Comments on an estimation of the rigidity of a macromolecular chain from hydrodynamic data by means of graphic methods

Abstract

It is demonstrated, by means of an analysis of theoretical relationships, that evaluation of hydrodynamic data by uncritically applied extrapolation methods, especially if the only criterion of their applicability consists in the linearity ofgraphic plots, may lead to incorrect conclusions about the rigidity ofthe polymer chain. A simple procedure is suggested for the characterization of the quality of hydrodynamic data from the viewpoint of determination of the rigidity of a polymer chain.