Polymers with dielectric constants above 100-nomadic polymerization

Conventional polymeric solids (pure, unfilled) have dielectric constants or relative permittivities, εr, in the range of about 1. 8 to 38. Recent years have seen a growing number of pure polymeric solids in which this value is exceeded. It is the purpose of this discussion to point out the types of homogeneous solids exhibiting such enhanced polarizations, and to suggest some of the reasons for it. We shall not discuss the problem of obtaining high dielectric constants by the use of fillers, etc., as in mixed phase dielectrics.