MOLECULAR WEIGHT DEPENDENCE OF RELAXATION SPECTRA OF AMORPHOUS POLYMERS IN THE RUBBERY REGION.

PART VII COMPARISONS OF EXPERIMENTAL RELAXATION SPECTRA OF AMORPHOUS POLYMERS WITH THOSE ESTIMATED FROM THEIR MOLECULAR WEIGHT DISTRIBUTIONS

Abstract

A direct proportionality relationship between the mechanical relaxation spectra and the molecular weight distribution of an amorphous polymer, which had been proposed in the preceding paper, was tested on the five sets of experimental data from the samples differing widely in their glass temperature, average molecular weight and shape of molecular weight distribution.
It is found therefrom that the proposed relationship is applicable with an unexpectedly high accuracy to the amorphous polymers in general.