| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1683404 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2007 | 4 Pages |
Abstract
Ternary mixtures of poly(vinyl pyrrolidone) (PVP), citric acid (CA) and water were irradiated at various gamma ray doses. Copolymer swelling and gelation% were determined with respect to the irradiation dose and PVP/CA composition. The gelation% increases with increasing the irradiation dose, but decreases with increasing the CA content in the graft copolymer. The swelling% of the prepared hydrogels decreases with increasing the irradiation dose and CA content in the copolymer, as a result of an increase in the crosslink density and the hydrogen bonds, respectively. The ion exchange capacity and the uptake of uranyl ions increase with increasing the CA content in the graft copolymer.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Zaki Ajji,