@article{Held2002Aqueo-10021,
  year={2002},
  doi={10.1021/ma0120411},
  title={Aqueous Polyketone Latices Prepared with Water-Insoluble Palladium (II) Catalysts},
  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}
}

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    <dc:contributor>Mecking, Stefan</dc:contributor>
    <dc:creator>Lindner, Ekkehard</dc:creator>
    <dc:contributor>Lindner, Ekkehard</dc:contributor>
    <dcterms:issued>2002</dcterms:issued>
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    <dcterms:bibliographicCitation>First publ. in: Macromolecules ; 35 (2002), 9. - S. 3342-3347</dcterms:bibliographicCitation>
    <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>Held, Anke</dc:contributor>
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    <dcterms:title>Aqueous Polyketone Latices Prepared with Water-Insoluble Palladium (II) Catalysts</dcterms:title>
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    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:16:02Z</dc:date>
    <dc:creator>Sunjuk, Mahmoud</dc:creator>
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    <dc:creator>Thomann, Ralf</dc:creator>
    <dc:creator>Held, Anke</dc:creator>
    <dc:creator>Schmid, Markus</dc:creator>
    <dc:contributor>Schmid, Markus</dc:contributor>
    <dc:creator>Mecking, Stefan</dc:creator>
    <dc:contributor>Khanfar, Monther</dc:contributor>
    <dc:contributor>Pietruschka, Raimund</dc:contributor>
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    <dc:contributor>Zuideveld, Martin A.</dc:contributor>
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