Journal ArticleDOI
Über das schwermetallbindungsvermögen von vernetztem poly(vinylamin) und daraus hergestellter amphoterer ionenaustauscher
TLDR
In this paper, the possibility of binding the metal ions Cu++, Ni++, Co++, Zn++, and Mg++ by poly-(vinylamin) crosslinked with hydrophilic hexa-1.5-dien-3.4-diol was studied in the pH range 3-8 as well as the kinetics of this process.Abstract:
Es wurde das Sorptionsvermogen zweier durch Hexadien-(1.5)-diol-(3.4)-gruppen hydrophil vernetzter Poly(vinylamin)-Harze fur Cu++, Ni++, Co++, Zn++ und Mg++ im pH-Bereich 3–8 gemessen sowie in einigen Fallen die Sorptionsgeschwindigkeit bestimmt. Ausgehend von den Poly(vinylamin)-Harzen erhielt man durch Reaktion mit Alkalisalzen der Chloressigsaure hochkapazitive Chelatharze. Amphotere Ionenaustauscher mit der α-Aminomethylphosphonsaure-Gruppe konneten aus den Poly(vinylamin)-Harzen einerseits mittels Chlormethylphosphonat, andererseits mit Formaldehyd und phosphoriger Saure dargestellt werden. Bei beiden Harztypen wurden das Metallbindungsvermogen sowie die Austauschgeschwindigkeit in Abhangigkeit vom pH untersucht.
The possibility of binding the metal ions Cu++, Ni++, Co++, Zn++, and Mg++ by poly-(vinylamin) crosslinked with hydrophilic hexa-1.5-dien-3.4-diol was studied in the pH range 3–8 as well as the kinetics of this process. By condensation of the amin resins with chloroacetate chelating resins with a high capacity were obtained. The introduction of the α-aminomethylphosphonic group into the amin resin by reaction with chloromethylphosphonate or formaldehyde and phosphorous acid resulted in new amphoteric resins. At different pH values for both types of resins the adsorption of transition metal ions and their exchange rate was measured.read more
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Journal ArticleDOI
Functionalization and chelating properties of a porous polymer derived from vinylamine
TL;DR: In this article, a porous polymer containing vinylamine units was prepared by suspension copolymerization of N -vinyl t-butyl carbamate, styrene and ethylene glycol dimethacrylate in the presence of heptane, followed by hydrolysis of the carbamate functions to obtain amino groups.
Journal ArticleDOI
Preparation and Chelation Properties of Polystyrene–Divinylbenzene Copolymer Resins Containing Pyridylamines, Salicylamine, and 2-Thenylamine
TL;DR: In this paper, Bidentate and tridentate ligands, 2-pyridylmethylamine, N-[2-(2-(pyridine)ethyl]ethylenediamine, salicylamine and 2-thenylamine are incorporated into polystyrene-2-divinylbenzene copolymer beads.
Journal ArticleDOI
Polymere Imidazolcarbonsäuren, 1. Darstellung und Eigenschaften einiger vernetzter Polyvinylimidazolcarbonsäuren†
Georg Manecke,Rainer Schlegel +1 more
TL;DR: In this article, homopolymers of some vinyl substituted imidazolecarboxylic acid esters were obtained by radical solution polymerization and their properties were examined, such as swelling behavior at different pH-values, the binding ability of the resins for Cu2+-ions at pH 5,0, and the uptake of Cu2 +-ions in dependence of the time were investigated.
Journal ArticleDOI
Ion-Exchange and Chelation Resins Derived from Poly(t-butyl N-Vinyl Carbamate)
TL;DR: In this article, cross-linked resins containing vinyl amine units spaced by cyclic urea units are obtained by pyrolysis of poly(t-butyl N-vinyl carbamate) at 200°C, followed by treatment of the pyrolysate with HBr/HOAc solution and subsequent neutralization.