An Overview of the Viscous and Viscoelastic Behavior of Ionomers in Bulk and Solution

Abstract
The subject of the viscous and viscoelastic behavior of ionomer systems is addressed from a general point of view. Following some introductory material concerning terminology and characteristics of ionomers that are pertinent for later discussion, the format will be to first briefly consider the glassy state followed with a more complete discussion of the rubbery and viscous flow (melt) states. The viscous and viscoelastic response of ionomer systems when in solution will then be discussed. We have also attempted to compare the so-called “random copolymer” ionomers to the telechelic systems. Emphasis is given to single component materials in contrast to blends or filled systems, but some brief remarks are made concerning the latter topics.