Aqueous Polyketone Latices Prepared with Water-Insoluble Palladium (II) Catalysts


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HELD, Anke, Ludmila KOLB, Martin A. ZUIDEVELD, Ralf THOMANN, Stefan MECKING, Markus SCHMID, Raimund PIETRUSCHKA, Ekkehard LINDNER, Monther KHANFAR, Mahmoud SUNJUK, 2002. Aqueous Polyketone Latices Prepared with Water-Insoluble Palladium (II) Catalysts. In: Macromolecules. 35(9), pp. 3342-3347. ISSN 0024-9297. eISSN 1520-5835

@article{Held2002Aqueo-10021, title={Aqueous Polyketone Latices Prepared with Water-Insoluble Palladium (II) Catalysts}, year={2002}, doi={10.1021/ma0120411}, number={9}, volume={35}, issn={0024-9297}, journal={Macromolecules}, pages={3342--3347}, author={Held, Anke and Kolb, Ludmila and Zuideveld, Martin A. and Thomann, Ralf and Mecking, Stefan and Schmid, Markus and Pietruschka, Raimund and Lindner, Ekkehard and Khanfar, Monther and Sunjuk, Mahmoud} }

<rdf:RDF xmlns:rdf="" xmlns:bibo="" xmlns:dc="" xmlns:dcterms="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dc:contributor>Thomann, Ralf</dc:contributor> <dc:creator>Thomann, Ralf</dc:creator> <dc:creator>Sunjuk, Mahmoud</dc:creator> <bibo:uri rdf:resource=""/> <dc:contributor>Zuideveld, Martin A.</dc:contributor> <dc:format>application/pdf</dc:format> <dc:creator>Mecking, Stefan</dc:creator> <dc:creator>Lindner, Ekkehard</dc:creator> <dcterms:bibliographicCitation>First publ. in: Macromolecules ; 35 (2002), 9. - S. 3342-3347</dcterms:bibliographicCitation> <dc:contributor>Held, Anke</dc:contributor> <dc:creator>Held, Anke</dc:creator> <dc:language>eng</dc:language> <dc:contributor>Schmid, Markus</dc:contributor> <dc:contributor>Sunjuk, Mahmoud</dc:contributor> <dc:contributor>Kolb, Ludmila</dc:contributor> <dcterms:abstract xml:lang="eng">Alternating copolymerization of carbon monoxide with ethylene or 1-olefins in aqueous emulsion by water-insoluble palladium(II) complexes is reported. Latices of aliphatic polyketones(1-olefin/CO copolymers and ethylene/undec-10-enoic acid/CO terpolymers), prepared by catalytic polymerization, are described for the first time. An in situ catalyst system [{R2P(CH2)3PR2}Pd(OAc)2]/strong acid (R = Ph or (CH2)13CH3) or well-defined complexes [{Ph2P(CH2)3PPh2}PdMe(NCCH3)]+Y-(Y- = [B{3,5-(F3C)2C6H3}4]- or SbF6-) were used in the form of a solution of the palladium(II) complex in miniemulsion droplets of a hydrocarbon dispersed in the continuous aqueous phase. Catalyst activities of up to 5 X 103 TO h-1 slightly exceed those of nonaqueous polymerizations in methanol with the same catalysts. Polymer molecular weights (GPC vs PMMA standards) are typically Mw 2 X 105 (ethylene copolymers) respectively Mw 2 X 104 (1-olefin copolymers) with Mw/Mn 2-4. The 1-olefin copolymers exhibit glass transition temperatures of Tg = +10 to -55°C, which is in the range desirable for latex applications.</dcterms:abstract> <dc:contributor>Mecking, Stefan</dc:contributor> <dc:creator>Zuideveld, Martin A.</dc:creator> <dc:contributor>Lindner, Ekkehard</dc:contributor> <dc:date rdf:datatype="">2011-03-24T18:16:02Z</dc:date> <dc:contributor>Khanfar, Monther</dc:contributor> <dc:contributor>Pietruschka, Raimund</dc:contributor> <dc:creator>Schmid, Markus</dc:creator> <dc:creator>Khanfar, Monther</dc:creator> <dcterms:title>Aqueous Polyketone Latices Prepared with Water-Insoluble Palladium (II) Catalysts</dcterms:title> <dcterms:rights rdf:resource=""/> <dc:rights>deposit-license</dc:rights> <dc:creator>Pietruschka, Raimund</dc:creator> <dcterms:issued>2002</dcterms:issued> <dc:creator>Kolb, Ludmila</dc:creator> </rdf:Description> </rdf:RDF>

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