Complexation of uranyl ions by polypyrrole doped by sulfonated and phosphonated polyethyleneimine

Branched polyethyleneimine (PEI) was sulfonated by reaction with chloropropanesulfonylchloride and phosphonated by reaction with phosphorous acid and formaldehyde. The accordingly formed polyanions were used as doping agents for polypyrrole (PPy). The amount of doping polyanions into thin films of PPy was measured by Rutherford back-scattering. These films were tested for their capacity to extract uranyl ions from liquid wastes of low level activity. The uranium content was determined by neutron activation analysis, autoradiography, and gravimetry of uranium oxide after calcination. The resistance against static and dynamic leachings was also estimated. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 352–359, 2003

[1]  C. Jérôme,et al.  Determination of the stability constants of uranyl/polymer complexes by differential pulse polarography , 2001 .

[2]  D. Strivay,et al.  New system for complexation of uranyl ions from liquid wastes of low‐level activity: Polypyrrole doped with complexing polyanions , 2000 .

[3]  W. S. Lyon.  NAA — Is our future behind us? , 1999 .

[4]  M. Jones,et al.  Evaluation of synthetic water-soluble metal-binding polymers with ultrafiltration for selective concentration of americium and plutonium , 1998 .

[5]  B. Schmidt,et al.  Depth profile analysis: STEM‐EDX vs. RBS , 1998 .

[6]  J. Suh,et al.  Binding of uranyl ion by poly(ethylenimine) containing a salicylate derivative , 1997 .

[7]  L. Martinot,et al.  Complexation of uranyl ion by polyvinylimidazole: Electrochemical preparation and leaching tests investigations , 1997 .

[8]  M. Shanahan.  Wetting phenomena on polymeric surfaces , 1996 .

[9]  T. Osaka,et al.  Cation Sensitivity of a Polypyrrole/Polyanion Composite Film Electrode , 1995 .

[10]  C. Zorman,et al.  Rutherford Backscattering Studies of Polypyrrole Films I . Effect of Electrolyte on Deposition Efficiency , 1995 .

[11]  B. Rivas,et al.  Branched poly(ethylene imine) support for resins with retention properties for heavy metal ions , 1993 .

[12]  K. Geckeler,et al.  Synthesis and metal complexation of poly(ethyleneimine) and derivatives , 1992 .

[13]  B. Spivakov,et al.  Separation and Preconcentration of Actinides by a Water-Soluble Oxine Polymer Using Membrane Filtration , 1989 .