Uranyl ion uptake capacity of poly (N-isopropylacrylamide/maleic acid) copolymeric hydrogels prepared by gamma rays

Kam E., Tasdelen B., Osmanlioglu A. E.

RADIATION PHYSICS AND CHEMISTRY, vol.81, no.6, pp.618-621, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 81 Issue: 6
  • Publication Date: 2012
  • Doi Number: 10.1016/j.radphyschem.2012.02.041
  • Journal Name: RADIATION PHYSICS AND CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.618-621
  • Keywords: Hydrogel, Copolymers, N-isopropylacrylamide, Uranyl uptake, Maleic acid, gamma-rays, AQUEOUS-SOLUTIONS, DRUG-RELEASE, ADSORPTION
  • Istanbul Technical University Affiliated: No

Abstract

The effect of gel composition, absorbed dose and pH of the solution on the uranyl ion uptake capacity of N-isopropylacrylamide/maleic acid copolymeric hydrogels containing 0-3 mol% of maleic acid at 48 kGy have been investigated. Uranyl uptake capacity of hydrogels are found to increase from 18.5 to 94.8 mg [UO22+]/g dry gel as the mole % of maleic acid content in the gel structure increased from 0 to 3. The percent swelling, equilibrium swelling and diffusion coefficient values have been evaluated for poly(N-isopropylacrylamide/maleic acid) hydrogels at 500 ppm of uranyl nitrate solution. (C) 2012 Elsevier Ltd. All rights reserved.