Dielectric and related molecular processes in polymers

A comprehensive knowledge of the nature and origin of dielectric polarization and electrical conduction in viscoelastic polymers requires considerations of multiplicity of interactions of the polymer chains and their fine structure behavior. Molecular motions in polymers involve the concept of 'reptation' in which a polymer chain moves in a fixed network of obstacles. The behavior of dielectric relaxation and electrical properties with ac and dc fields needs to be correlated with the viscoelastic molecular motions of the polymer chains.