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Determination of the stability constants of uranyl/polymer complexes by differential pulse polarography
Leroy, D.; Martinot, Lucien; Jérôme, Christine et al.
2001In Polymer, 42 (10), p. 4589-4596
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Abstract :
[en] Differential pulse polarography (DPP) allows for the determination of the stability constants (K) and the stoichiometry (n) for the complexation of the UO22+ ion by various monomers and the parent polymers. The experimental observation is the shift of the totally reversible reduction wave UO22++e- UO2+ toward more cathodic potentials when the complexing monomer or polymer is added to an uranyl nitrate aqueous solution. This shift is, however, much greater when the polymer is used rather than the monomer, in line with a higher stability of the complexes (Kpolymer>>Kmonomer). A theoretical stability scale of the polymers/UO22+ complexes was compared to an experimental one based on dynamic leaching tests.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Leroy, D.;  Université de Liège - ULiège > Department of Chemistry > Coordination Chemistry and Radiochemistry
Martinot, Lucien ;  Université de Liège - ULiège > Department of Chemistry > Coordination Chemistry and Radiochemistry
Jérôme, Christine  ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Determination of the stability constants of uranyl/polymer complexes by differential pulse polarography
Publication date :
01 February 2001
Journal title :
Polymer
ISSN :
0032-3861
eISSN :
1873-2291
Publisher :
Elsevier Sci Ltd, Oxford, United Kingdom
Volume :
42
Issue :
10
Pages :
4589-4596
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
IISN - Institut interuniversitaire des sciences nucléaires [BE]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
BELSPO - Politique scientifique fédérale [BE]
Commentary :
The authors acknowledge Polymer (Elsevier) for allowing them to archive this paper.
Available on ORBi :
since 07 May 2009

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