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ЖУРНАЛЫ // Mendeleev Communications // Архив

Mendeleev Commun., 2006, том 16, выпуск 6, страницы 331–333 (Mi mendc3647)

Эта публикация цитируется в 2 статьях

Effect of chemical interactions in the metal–F system on the electric properties of fluoroelastomers

V. V. Kochervinskii

L. Ya. Karpov Institute of Physical Chemistry, Moscow, Russian Federation

Аннотация: The characteristics of low-frequency dielectric relaxation at high temperatures in poly(vinylidene fluoride) (PVDF) and copolymers of VDF with hexafluoropropylene HFP are discussed; this relaxation is localised near the melting temperatures, characterised by a giant strength of relaxation and attributed to the accumulation of spatial charge (presumably H+ and F) at electrode boundaries. For Al electrode, dispersion is controlled by the concentration of CF3 groups in the polymer; this fact should be related to formation of specific fluorine-aluminium compounds and the capacitance of the double electric layer is considerably controlled by formation of AlF3 groups at the boundary of the polymer melt with the electrode.

Язык публикации: английский

DOI: 10.1070/MC2006v016n06ABEH002319



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