Application and Modification of Cyclometalated Ruthenium(II) Complex [Ru(o-C6H4-2-C5H4N)- (MeCN)4]PF6 for Atom Transfer Radical Polymerization

Polymerizations of n‐butyl acrylate (BA), methyl methacrylate (MMA) and styrene (St) were promoted by the Ru(II) cyclometalated complex with labile MeCN ligand in the presence of Al(OiPr)3. The polymerization proceeds via radical mechanism and requires the loss of MeCN ligand. The poor control over...

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Veröffentlicht in:	Macromolecular symposia 2006-10, Vol.242 (1), p.25-33
Hauptverfasser:	Camacho, Francisco Diaz, Morales, Salvador Lopez, Le Lagadec, Ronan, Alexandrova, Larissa
Format:	Artikel
Sprache:	eng
Schlagworte:	Acrylates Applied sciences ATRP Controllability cyclometalated Ru-complexes Exact sciences and technology Ligands metal-catalyzed polymerization Organic polymers Physicochemistry of polymers Polymerization Polymethyl methacrylates Preparation, kinetics, thermodynamics, mechanism and catalysts Radicals reducing agent in ATRP Ru-catalyzed polymerization Styrenes
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Beschreibung
Zusammenfassung:	Polymerizations of n‐butyl acrylate (BA), methyl methacrylate (MMA) and styrene (St) were promoted by the Ru(II) cyclometalated complex with labile MeCN ligand in the presence of Al(OiPr)3. The polymerization proceeds via radical mechanism and requires the loss of MeCN ligand. The poor control over the polymerizations can be explained in terms of the traditional ATRP scheme. However, the controllability may be significantly improved by addition of reducing SnCl2. Mechanism of the process is proposed.
ISSN:	1022-1360 1521-3900
DOI:	10.1002/masy.200651005