PREPARATION AND REACTIVITY OF METAL-CONTAINING MONOMERS .42. COPOLYMERIZATION OF METAL-CONTAINING MONOMERS AS A ROUTE FOR THE SYNTHESIS OF THE PRECURSORS OF HIGH-TEMPERATURE SUPERCONDUCTING CERAMICS

The preparation of HTSC ceramics based on Y-III and Bi-III was studied . The polymers were obtained by two methods: by the reaction of prelim inarily synthesized polyacrylic acid (PAA) or polyacrylamide (PAAm) wi th Y-III, Ba-II, and Cu-II nitrates or by copolymerization of metal co ntaining monomers (metal (Y-II, Ba-II, and Cu-II) acrylates or acrylam ide complexes of metal (Bi-III, Ca-II, Sr-II, Pb-II, and Cu-II) nitrat es). The copolymerization was carried out in solution, in the solid ph ase, or using spontaneous polymerization, which has been previously di scovered by the authors. The properties of the HTSC ceramics obtained are improved when the products of copolymerization of metal containing monomers are used.