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New system for complexation of uranyl ions from liquid wastes of low‐level activity: Polypyrrole doped with complexing polyanions
Author(s) -
Leroy D.,
Martinot L.,
Debecker M.,
Strivay D.,
Weber G.,
Jérôme C.,
Jérôme R.
Publication year - 2000
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 - 10.1002/1097-4628(20000808)77:6<1230::aid-app7>3.0.co;2-z
Subject(s) - uranyl , polypyrrole , uranium , materials science , leaching (pedology) , doping , polymer , ion , inert , polymer chemistry , nuclear chemistry , inorganic chemistry , chemical engineering , composite material , chemistry , polymerization , metallurgy , organic chemistry , environmental science , optoelectronics , soil science , engineering , soil water
Polymer composites consisting of polypyrrole doped by uranyl complexing polyanions [i.e., poly(2‐acrylamidoglycolic acid) and poly(2‐acrylamido‐2‐methyl‐1‐propanesulfonic acid)] were electrochemically synthesized. Bulk material and thin layers strongly adhering to inert supporting electrodes were prepared. These composites were used to precipitate uranyl ions from simulated radioactive wastes. Among different experimental techniques used for the analysis of uranium immobilized in the composites, the Rutherford backscattering of α particles proved efficient in thin layers. Leaching tests confirmed the persistence of the uranium complexation in the solid composites. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 1230–1239, 2000