Abstract
Abstract This article describes the effect of metallic salts, Sn (II), Hg (II), Co (II) chlorides, on the electrical properties of polyimide films derived from 3,3′,4,4′-benzophenone tetracarboxylic acid dianhydride (BTDA) and 4,4′-diaminodiphenyl ether (E). The effect of temperature/field on the electrical conductivity of the films was studied. An ohmic/sublinear behaviour in undoped film and a non-ohmic behaviour at high field and temperature was observed in doped films. Dielectric characteristics (e and tan δ) as a function of frequency and temperature were also investigated.
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