Dynamic mechanical properties (elastic moduli, phase angle) for superconducting (SC) polymer-ceramic composites based on Y 1 Ba 2 Cu 3 O 7−x SC oxide ceramic and superhighmolecular polyethylene have been investigated. The analysis of the obtained data shows a strong interaction of the polymeric binder with the surface of the ceramic grains. It is concluded that changes of packing and structure of the macromolecules occur at the ceramic-polymer interface. This is confirmed by melting enthalpy measurements of SC polymer-ceramic composites of different filler content.Scanning electron microscopy studies of the high temperature SC composites showed that the ceramic grains are evenly covered by the binder for both amorphous and crystalline polymers. EPR (electron paramagnetic resonance) spectra of polymer-ceramic composites have shown that the intensity of the EPR signals of Cu 2+ (1) depends on the nature and the content of binder. The Mn, Co, Zn, Ni containing superconducting composites have been obtained by frontal polymerization.

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