Sorption of Platinum Group Metals and Gold Chlorocomplexes by Amine Polymeric Sorbents

Myasoedova, G. V.; Shcherbinina, N. I.; Zakhartchenko, E.A.; Kolobov, S. S.; Lileeva, L. V.; Komozin, P. N.; Marov, I. N.; Belyaeva, V. K.

doi:10.1080/07366299708934524

Cited by 21 publications

(6 citation statements)

References 7 publications

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“…Au(III) ions have a great tendency to be reduced and adsorbed when they come into contact with adsorbents. 52 Compounds containing S atoms can also reduce Au(III) to Au(I) before adsorption. 49,53 To verify the participation of the polymeric matrix in metal adsorption, we studied the different polymers synthesized before the addition of the functional group (polymers 6 to 15).…”

Section: Coordination Experiments With Metal Ions the Effect Of Spacementioning

confidence: 99%

New macroporous polymers for the selective adsorption of gold (III) and palladium (II). I. The synthesis, characterization, and effect of spacers on metal adsorption

Sánchez

Hidalgo

Valiente

et al. 2000

J. Polym. Sci. A Polym. Chem.

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Section: Coordination Experiments With Metal Ions the Effect Of Spacementioning

confidence: 99%

New macroporous polymers for the selective adsorption of gold (III) and palladium (II). I. The synthesis, characterization, and effect of spacers on metal adsorption

Sánchez

Hidalgo

Valiente

et al. 2000

J. Polym. Sci. A Polym. Chem.

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“…We assign this behavior to the complexation of at least two −NH 2 groups by one AuCl

_{4}^{−}

ion. Hence, the strong binding of this gold compound is much enhanced through complexation as expected from data in the literature 29,37–40. The interaction of protonated and neutral amines with HAuCl 4 leading to the formation of gold nanoparticles has been exploited quite often, but the nature of the exact species formed is not very clear.…”

Section: Resultsmentioning

confidence: 81%

Cationic Spherical Polyelectrolyte Brushes as Nanoreactors for the Generation of Gold Particles

Sharma

Ballauff

2004

Macromol. Rapid Commun.

149

139

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Summary: If long polyelectrolyte chains are attached densely to colloidal latex particles, a spherical polyelectrolyte brush results. These spherical polyelectrolytes are dispersed in water and carry a high charge. We demonstrate that these systems can be used to immobilize ions of heavy metals, such as gold, as counter‐ions. Reduction of these ions leads to metallic nanoparticles. In this way the brush layer attached to the surface of the particles becomes a “nanoreactor” that may be used for chemical conversions of the metal ions. We show that the reduction of AuCl 4− ions within these nanoreactors leads to well‐defined and rather monodisperse gold nanoparticles that are attached to the surface of the core. A stable dispersion of polymeric core particles with attached nanoparticles results. All results reported here suggest that chemical reactions of ions immobilized in spherical polyelectrolyte brushes provide a new route to composite particles of inorganic and organic materials.

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“…The utility of the brominated pentaerythritol for the synthesis of ion‐complexing polymers was probed with its conversion to an amine‐bearing polymer. Amines are complexants for metal cations18 and anions19 with applications in environmental remediation and hydrometallurgy. The complexation of the uranyl ion from acidic solutions is particularly important due to its application in uranium recovery processes 20.…”

Section: Resultsmentioning

confidence: 99%

Functionalization of polymer‐supported pentaerythritol as a general synthesis for the preparation of ion‐binding polymers

Alexandratos

Zhu

2012

J of Applied Polymer Sci

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Pentaerythritol bonded to cross-linked poly(vinylbenzyl chloride) beads (PE) provides a scaffold onto which ligands can be attached by reaction with reactive compounds such as phosphoryl halides. To broaden the applicability of PE for the preparation of ion-selective polymers, conditions are reported for the conversion of the hydroxyl group to the bromide, which acts as a better leaving group. The ACH 2 Br moiety thus provides a handle on which an array of ligands can be bound through nucleophilic substitution. In this first in a series of reports, immobilization of diethylamine onto the PE and the ion-binding affinities of the resulting polymer are described.

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Sorption of Platinum Group Metals and Gold Chlorocomplexes by Amine Polymeric Sorbents

Cited by 21 publications

References 7 publications

New macroporous polymers for the selective adsorption of gold (III) and palladium (II). I. The synthesis, characterization, and effect of spacers on metal adsorption

New macroporous polymers for the selective adsorption of gold (III) and palladium (II). I. The synthesis, characterization, and effect of spacers on metal adsorption

Cationic Spherical Polyelectrolyte Brushes as Nanoreactors for the Generation of Gold Particles

Functionalization of polymer‐supported pentaerythritol as a general synthesis for the preparation of ion‐binding polymers

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