Relation between the structure of polymers and their dynamic mechanical and electrical properties. Part I. Some alpha‐substituted acrylic ester polymers

Abstract

A comprehensive study of the dynamic mechanical and dielectric properties of acrylic polymers (polymethyl methacrylate, polymethyl‐α‐chloroacrylate) has been made; these two properties were found to be intrinsically correlated; results are given in graphic form. The hypothesis is proposed that each of several mechanical and dielectric dispersion regions found in a given polymer is associated with a definable structural feature, i.e., a group of atoms, in the polymer, such that each group gives rise to a mechanical dispersion and, if polar, also to a dielectric dispersion in the same temperature and frequency region; it should also be possible to trace the same dispersion from one polymer to another, provided they all contain the same group.