Copper removal from ATRP products by means of addition of sulfur compounds

The present invention relates to a precipitation process for removing transition metals from polymer solutions. Specifically, it comprises the removal of transition metal complexes which usually comprise copper from polymer solutions after a completed atom transfer radical polymerization.

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Bibliographische Detailangaben
Hauptverfasser: Balk, Sven, Loehden, Gerd, Miess, Christine, Troemer, Christine, Maerz, Monika
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to a precipitation process for removing transition metals from polymer solutions. Specifically, it comprises the removal of transition metal complexes which usually comprise copper from polymer solutions after a completed atom transfer radical polymerization.