@article{Urbano2010Catal-1058,
  year={2010},
  doi={10.1002/pola.24231},
  title={Catalytic cyclopropanation of polybutadienes},
  number={20},
  volume={48},
  journal={Journal of Polymer Science, Part A: Polymer Chemistry},
  pages={4439--4444},
  author={Urbano, Juan and Korthals, Brigitte and Díaz-Requejo, María del Mar and Pérez, Pedro J. and Mecking, Stefan}
}

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    <dc:contributor>Korthals, Brigitte</dc:contributor>
    <dc:creator>Díaz-Requejo, María del Mar</dc:creator>
    <dc:creator>Mecking, Stefan</dc:creator>
    <dc:creator>Korthals, Brigitte</dc:creator>
    <dc:contributor>Díaz-Requejo, María del Mar</dc:contributor>
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    <dcterms:issued>2010</dcterms:issued>
    <dcterms:title>Catalytic cyclopropanation of polybutadienes</dcterms:title>
    <dc:contributor>Pérez, Pedro J.</dc:contributor>
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    <dc:contributor>Urbano, Juan</dc:contributor>
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    <dcterms:bibliographicCitation>Publ. in: Journal of Polymer Science, Part A: Polymer Chemistry 48 (2010), 20, pp. 4439-4444</dcterms:bibliographicCitation>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-22T17:55:00Z</dc:date>
    <dc:creator>Urbano, Juan</dc:creator>
    <dc:creator>Pérez, Pedro J.</dc:creator>
    <dc:contributor>Mecking, Stefan</dc:contributor>
    <dcterms:abstract xml:lang="eng">Catalytic cyclopropanation of commercial 1,2- or 1,4-cis-polybutadiene, respectively, with ethyl diazoacetate catalyzed by [TpBr3Cu(NCMe)] (TpBr3 = hydrotris(3,4,5-tribromo-1-pyrazolyl)borate) at room temperature afforded high molecular weight (Mn &gt; 105 mol−1) side-chain or main-chain, respectively, carboxyethyl cyclopropyl-substituted polymers with variable and controlled degrees of functionalization. Complete functionalization of 1,4-cis-polybutadiene afforded poly[ethylene-alt-(3-ethoxycarbonyl-cyclopropene)]. Catalytic hydrogenation of residual double bonds of partially cyclopropanated polybutadienes provided access to the corresponding saturated polyolefins. Thermal properties are reported.</dcterms:abstract>
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