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Solutions spinning of the high T c oxide superconductor. II. Effect of organic acid on the complex formation of PVA with the copper (II) ion
Author(s) -
Tomita Hisayo,
Goto Tomoko
Publication year - 1994
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1994.070510621
Subject(s) - formic acid , vinyl alcohol , acetic acid , copper , aqueous solution , organic acid , chelation , inorganic chemistry , carboxylic acid , chemistry , polymer chemistry , organic chemistry , polymer
As basic research for the solution spinning of the high T c oxide 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 Wiley & Sons, Inc.