✦ LIBER ✦

Complexation of poly(acrylic acid)s with uranyl ion

✍ Scribed by H. Nishide; N. Oki; E. Tsuchida

Publisher: Elsevier Science
Year: 1982
Tongue: English
Weight: 263 KB
Volume: 18
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(82)90149-5

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✦ Synopsis

The complexation of uranyl ion (UO~ + ) in aqueous solution with polymers containing carboxylic acid groups was studied potentiometrically. Overall formation constants of the uranyl complexes with poly(methacrylic acid) and crosslinked poly(acrylic acid} were much larger than those with the corresponding low molecular carboxylic acids. Decrease in the viscosity of the polymer solution on adding uranyl ion indicated that poly(acrylic acid) forms intra-polymer chelates with uranyl ion. The crosslinked poly(acrylic acid) adsorbed uranyl ions at higher efficiency than transition metal ions.

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