Abstract
Recent development in the researches on the electrical properties of solid polymers is discussed. Emphasis is laid on the electrical conduction and the dielectric properties. Ionic conduction is discussed in terms of ionic carrier sources and ionic mobility. Electronic conduction is discussed mainly from a physico-chemical point of view; photo-carrier generation by molecular excitation and electronic transport by molecular allignment. The limiting dielectric constant at high frequencies and refractive index are discussed as a function of molecular structure. The dielectric relaxation processes are explained by various modes of molecular motion. Applications of polymers to the electrical and electronic engineering are pointed out in each section
