| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1683439 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2007 | 6 Pages |
Abstract
Radiation-chemical synthesis of poly(vinyl alcohol) hydrogels containing physically immobilized dicyclohexano-18-crown-6 was carried out. Remarkable gel fraction of 40–70% was observed at absorbed dose of about 5 kGy. Increasing degree of poly(vinyl alcohol) crosslinking led to growth of the efficiency of crown ether immobilization. Post-irradiation thermal annealing of the hydrogel samples at 120 °C for 0.5–5 h resulted in an increase of crown ether retention as compared with non-annealed samples by approximately 20% at the same absorbed dose. Preliminary results on a sorption behavior of the crown-containing hydrogels with respect to Sr2+ cations in 2.4 M HNO3 solution are presented.
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Authors
O.A. Zakurdaeva, S.V. Nesterov, N.A. Shmakova, G.K. Semenova, E.O. Sozontova, V.I. Feldman,