Abstract
The dielectric activity of a thermotropic side-chain liquid crystalline polymer is analysed. The sub-glass relaxations are deconvoluted by two different empirically based equations (Fuoss–Kirkwood and Havriliak–Negami). The conductivity contributions are studied following a methodology proposed by Macdonald and Coelho. The effects of the orientation of the mesogenic group under electrical fields are also analysed. We propose a general method to estimate the curve of loss permittivity with a determined value of Sd based on the knowledge of two experimental curves, each corresponding to one well-known orientation. © 2001 Society of Chemical Industry
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