Radiation chemical synthesis of polyethylene oxide hydrogel containing DCH18C6 crown ether: A new approachстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Polyethylene oxide hydrogels containing physically immobilized dicyclohexano-18-crown-6 were prepared by radiation chemical synthesis. Doses of gel formation were found to depend on the molecular weight of the polyethylene oxide and were about 20 and 4 kGy for M-w of 10(5) and 3.10(6), respectively. An increase in the crown ether concentration resulted in the decrease of the efficiency of hydrogel formation, whereas the effect of polymer concentration was less pronounced. It was found that dicyclohexano-18-crown-6 immobilized in the PEO hydrogel showed relatively high resistance toward washout in aqueous media.