Consideration of the Asymptotic Behavior of the Reciprocal Light Scattering Function for Polymer Molecular Weight Distribution Moment Determination

摘要

The possible use of the reciprocal light scattering function's asymptote to determine distribution moments in polydisperse polymers is examined. Computations are made for Gaussian coils of polymers having molecular weight distributions of the Schultz-Zimm form. Caution is advised in applying the concept to scattering data since in most instances the asymptote lies well off the scattering envelope in experimentally accessible ranges of the scattering parameters. (Author)