Abstract
Five new crown ether carboxyhc acid resins have been prepared by condensation polymerization of sym-(R)dibenzo-16-crown-5-oxyacetic acids with formaldehyde. Competitive alkali-metal cation sorption by these novel resins, which contain both ion-exchange and crown ether binding sites for metal ions, has been investigated. As the R-group was varied (methyl, ethyl, propyl, butyl, hexyl and decyl) both the alkali-metal cation sorption selectivity and efficiency were affected. The highest efficiency (loading) and Na+ sorption selectivity were obtained when R = methyl, ethyl and propyl. The longer alkyl groups were found to be detrimental to both sorption efficiency and selectivity.
Original language | English |
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Pages (from-to) | 1453-1457 |
Number of pages | 5 |
Journal | Talanta |
Volume | 38 |
Issue number | 12 |
DOIs | |
Publication status | Published - 1991 Dec |
Externally published | Yes |
ASJC Scopus subject areas
- Analytical Chemistry