This article is cited in 4 papers

Proceedings of the XIX All-Russian Conference on Physics of Ferroelectrics (VKS-XIX) (Moscow, Russia, June 19-23, 2011

Ordering and the relaxation properties of macromolecules in ferroelectric polymer films

R. A. Gerasimov, A. V. Maksimov, T. O. Petrova, O. G. Maksimova

Cherepovets State University

Abstract: The orientational order and dynamic properties of macromolecules have been studied in two- and three-dimensional systems of polymer chains that are orientationally ordered on the level of elastically strained kinetic units (Gaussian subchains) with anisotropic local intra- and interchain interactions of the dipole type. The values of the order parameter as a function of the film thickness for the corresponding type of boundary conditions imposed on the ends of the film have been calculated, and a comparison with the phenomenological theory and experimental data on polarization distribution in ferroelectric films based on vinylidene fluoride has been performed. Equations of motion have been obtained for transverse and longitudinal mean projections of kinetic units and relaxation time spectra for large-scale motions of chains in the state with a planar order. The long-range order in three-dimensional layers leads to anisotropy of mean-square sizes and, therefore, to relaxation properties of chains in their orientational motions (with respect to the direction of ordering).

 English version: Physics of the Solid State, 2012, 54:5, 1002–1004

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