Gels pp 98-100 | Cite as

A 13C-NMR study of polyacrylic acid gels as radioactive ion sorbents

  • A. Saidel Vasilescu
  • C. C. Ponta
Conference paper
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 102)


A 13C-NMR study was performed on polyacrylic acid (PAA) gel swollen in water in the presence of some di- and trivalent ions (Ca2+, Sr2+, Ba2+, Zn2+, UO 2 2+ , Al3+). As concentration of metal ions grows, the NMR signals (CH2, CH, COO) gradually broaden up to the spectrum disappearance. This is the moment when the gel collapses and the metal ion saturation occurs. The information obtained from 13C-NMR can be used in radioactive waste treatment procedures.

Key words

13C-NMR polyacrylic acid gels applications radioactive waste treatment 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Skouri R, Schosseler F, Munch J, Candau SJ (1995) Macromolecules 28:197–210.CrossRefGoogle Scholar
  2. 2.
    Ponta CC, Seitan G, Tudusciuc G (1992) Proc Intl Biomed Eng Days Istanbul 224–226Google Scholar
  3. 3.
    Axelos M, mestdagh M, francois J (1994) Macromolecules 27:6594–6602CrossRefGoogle Scholar
  4. 4.
    Ikegami A, Imai N (1962) J Polym Sci 56:133–149CrossRefGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1996

Authors and Affiliations

  • A. Saidel Vasilescu
    • 1
  • C. C. Ponta
    • 1
  1. 1.Institute of Physics and Nuclear Engineering S.1NMR LaboratoryBucharestRomania

Personalised recommendations