title: New gel-like polymers as selective weak-base anion exchangers.
abstract: A group of new anion exchangers, based on polyamine podands and of excellent ion-binding capacity, were synthesized. The materials were obtained in reactions between various poly(ethyleneamines) with glycidyl derivatives of cyclotetrasiloxane. The final polymeric, strongly cross-linked materials form gel-like solids. Their structures and interactions with anions adsorbed were studied by spectroscopic methods (CP-MAS NMR, FR-IR, UV-Vis). The sorption isotherms and kinetic parameters were determined for 29 anions. Materials studied show high ion capacity and selectivity towards some important anions, e.g., selenate(VI) or perrhenate.
authors.affiliation: Faculty of Chemistry, Adam Mickiewicz University in Poznań, Poznań, Poland.
authors.forename: Błażej
authors.initials: B
authors.lastname: Gierczyk
authors.affiliation: Faculty of Chemistry, Adam Mickiewicz University in Poznań, Poznań, Poland.
authors.forename: Michał
authors.initials: M
authors.lastname: Cegłowski
authors.affiliation: Faculty of Chemistry, Adam Mickiewicz University in Poznań, Poznań, Poland.
authors.forename: Maciej
authors.initials: M
authors.lastname: Zalas
mesh_terms: D065966:Absorption, Physicochemical; D000837:Anion Exchange Resins / Q000138:chemical synthesis* / Q000737:chemistry; D004852:Epoxy Compounds / Q000737:chemistry; D005782:Gels / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry; D012211:Rhenium / Q000737:chemistry; D064586:Selenic Acid / Q000737:chemistry
chemical_list: D000837:Anion Exchange Resins; D004852:Epoxy Compounds; D005782:Gels; C015428:perrhenate; D011092:Polyethylene Glycols; D012211:Rhenium; D064586:Selenic Acid