Removal of copper-based catalyst in atom transfer radical polymerization using different extraction techniques

Verfasser / Beitragende:
[Isabelle Ydens, Sébastien Moins, François Botteman, Philippe Degée, Philippe Dubois]
Ort, Verlag, Jahr:
2004
Enthalten in:
e-Polymers, 4/1(2004-12-01), 414-420
Format:
Artikel (online)
ID: 37890325X
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024 7 0 |a 10.1515/epoly.2004.4.1.414  |2 doi 
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245 0 0 |a Removal of copper-based catalyst in atom transfer radical polymerization using different extraction techniques  |h [Elektronische Daten]  |c [Isabelle Ydens, Sébastien Moins, François Botteman, Philippe Degée, Philippe Dubois] 
520 3 |a Several methods allowing the removal of copper-based ATRP active complexes from crude amino-functionalized polymethacrylate chains are compared. Among them, precipitation in basic medium is one of the most efficient techniques since it allows high recovery yields (above 90%) with a residual metal content as low as 5 ppm. Extraction methods such as liquid-liquid phase separation and dialysis but also selective adsorption on acidic macroporous ion exchange resin constitute other attractive alternatives. As far as water-insoluble polymers are concerned, catalyst adsorption on alumina remains the most universal method and provides acceptable recovery efficiency. However, we want to stress the key-importance of the experimental adsorption conditions and above all the relative content of alumina used for catalyst extraction. 
540 |a © 2013 by Walter de Gruyter GmbH & Co. 
700 1 |a Ydens  |D Isabelle  |u Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium; Fax 0032 (65) 37 34 84  |4 aut 
700 1 |a Moins  |D Sébastien  |u Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium; Fax 0032 (65) 37 34 84  |4 aut 
700 1 |a Botteman  |D François  |u Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium; Fax 0032 (65) 37 34 84  |4 aut 
700 1 |a Degée  |D Philippe  |u Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium; Fax 0032 (65) 37 34 84  |4 aut 
700 1 |a Dubois  |D Philippe  |u Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium; Fax 0032 (65) 37 34 84  |4 aut 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Moins  |D Sébastien  |u Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium; Fax 0032 (65) 37 34 84  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Botteman  |D François  |u Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium; Fax 0032 (65) 37 34 84  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Degée  |D Philippe  |u Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium; Fax 0032 (65) 37 34 84  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Dubois  |D Philippe  |u Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium; Fax 0032 (65) 37 34 84  |4 aut 
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