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Solutions spinning of the highTcoxide superconductor. II. Effect of organic acid on the complex formation of PVA with the copper (II) ion

机译:Solutions spinning of the highTcoxide superconductor. II. Effect of organic acid on the complex formation of PVA with the copper (II) ion

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AbstractAs basic research for the solution spinning of the highTcoxide superconductor, the effect of organic acid on the complex formation of poly(vinyl alcohol) (PVA) with the copper Cu(11) ion was explored with various carboxylic acids, such as formic acid, acetic acid,n‐butylic acid, and lactic acid. The effects of these acids on the interaction between PVA and Cu(II) acetate in aqueous solution were nonexistent, while a chelation of the Cu(II) ion and lactic acid was detected. In the solid state, a linear complex of PVA with the Cu(II) ion was formed by adding organic acid. The ligand of the linear complex was highly dependent on the kind of acid used. © 1994 John WileySons, I

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