Determination of the stability constants of uranyl/polymer complexes by differential pulse polarography

Leroy, D.; Martinot, Lucien; Jérôme, Christine; Jérôme, Robert

doi:10.1016/S0032-3861(00)00858-2

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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.

2001 • In Polymer, 42 (10), p. 4589-4596

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/12332

DOI
10.1016/S0032-3861(00)00858-2

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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/Unit :

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 :

Issue :

Pages :

4589-4596

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://www.science-direct.com/science?_ob=MImg&_imagekey=B6TXW-42991J7-H-1V&_cdi=5601&_user=532038&_orig=browse&_coverDate=02%2F01%2F2001&_sk=999579989&view=c&wchp=dGLbVlz-zSkzS&md5=bf2b374dbf17c94373ee42a8f79e2ac1&ie=/sdarticle.pdf
http://www.elsevier.com/wps/find/journaldescription.cws_home/30466/description#description

Funders :

IISN - Institut interuniversitaire des sciences nucléaires
F.R.S.-FNRS - Fonds de la Recherche Scientifique
BELSPO - Politique scientifique fédérale

Commentary :

The authors acknowledge Polymer (Elsevier) for allowing them to archive this paper.

Available on ORBi :

since 07 May 2009

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