|
|||||
|
|
Radiation-chemical synthesis of poly(vinyl alcohol) hydrogel containing dicyclohexano-18-crown-6 |
|
| Authors: | O.A. Zakurdaeva S.V. Nesterov G.K. Semenova V.I. Feldman |
| Affiliation: | a Enikolopov Institute of Synthetic Polymer Materials of RAS, ul. Profsoyuznaya, 70, Moscow 117393, Russia b Mendeleev University of Chemical Technology of Russia, Miusskaya Square 9, Moscow 125047, Russia c Department of Chemistry, Moscow State University, Moscow 119992, Russia |
| 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. |
| Keywords: | 82.50.Kx 82.35.&minus x |
| 本文献已被 ScienceDirect 等数据库收录！ | |