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High Permittivity in Polymers: Structure and Property Correlation

Polymers normally exhibit low dielectric permittivity, but very high values have also been exhibited under conditions of nomadic and interfacial polarization and by ferroelectric materials. Each of these mechanism require certain physico-chemical structural features in the solids. Interesting dielectric properties displayed by phthalocyanine systems, in particular polymeric copper phthalocyanine, synthesized in our laboratory, are discussed.