Publikation: Influence of indenyl ligand substitution pattern on metallocene-catalyzed ethene copolymerization with 1-octene
Dateien
Datum
Autor:innen
Herausgeber:innen
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
DOI (zitierfähiger Link)
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Core Facility der Universität Konstanz
Titel in einer weiteren Sprache
Publikationstyp
Publikationsstatus
Erschienen in
Zusammenfassung
The influence of silylene-bridged bis(indenyl) ligand substitution, especially benzannelation and 2-methyl substitution, on methylaluminoxane-activated metallocene-catalyzed ethene/1-octene copolymerization in toluene at 40 °C was investigated. 2-Methyl substitution gave significantly higher molecular masses at the expense of catalyst activity, whereas benzannelation promoted 1-octene incorporation and randomness of the resulting poly(ethene-co-1-octene) copolymers. Force field calculations based on steric arguments were used to explain experimental copolymerization results. Activation energy differences between ethene and 1-octene insertion accounted for improved 1-octene incorporation in the case of benzannelated metallocenes. According to 13C-NMR microstructure analysis, copolymerization followed first-order Markov statistics.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
Schlagwörter
Konferenz
Rezension
Zitieren
ISO 690
SCHNEIDER, Martin Julius, Jürgen SUHM, Rolf MÜLHAUPT, Marc-Heinrich PROSENC, Hans-Herbert BRINTZINGER, 1997. Influence of indenyl ligand substitution pattern on metallocene-catalyzed ethene copolymerization with 1-octene. In: Macromolecules. 1997, 30(11), pp. 3164-3168. ISSN 0024-9297. eISSN 1520-5835. Available under: doi: 10.1021/ma961844zBibTex
@article{Schneider1997Influ-23755, year={1997}, doi={10.1021/ma961844z}, title={Influence of indenyl ligand substitution pattern on metallocene-catalyzed ethene copolymerization with 1-octene}, number={11}, volume={30}, issn={0024-9297}, journal={Macromolecules}, pages={3164--3168}, author={Schneider, Martin Julius and Suhm, Jürgen and Mülhaupt, Rolf and Prosenc, Marc-Heinrich and Brintzinger, Hans-Herbert} }
RDF
<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/23755"> <dc:contributor>Suhm, Jürgen</dc:contributor> <dc:creator>Suhm, Jürgen</dc:creator> <dc:language>eng</dc:language> <foaf:homepage rdf:resource="http://localhost:8080/"/> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/> <dc:contributor>Schneider, Martin Julius</dc:contributor> <dcterms:bibliographicCitation>Macromolecules ; 30 (1997), 11. - S. 3164-3168</dcterms:bibliographicCitation> <dc:contributor>Mülhaupt, Rolf</dc:contributor> <dcterms:title>Influence of indenyl ligand substitution pattern on metallocene-catalyzed ethene copolymerization with 1-octene</dcterms:title> <dc:contributor>Brintzinger, Hans-Herbert</dc:contributor> <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/> <dc:creator>Mülhaupt, Rolf</dc:creator> <dcterms:abstract xml:lang="eng">The influence of silylene-bridged bis(indenyl) ligand substitution, especially benzannelation and 2-methyl substitution, on methylaluminoxane-activated metallocene-catalyzed ethene/1-octene copolymerization in toluene at 40 °C was investigated. 2-Methyl substitution gave significantly higher molecular masses at the expense of catalyst activity, whereas benzannelation promoted 1-octene incorporation and randomness of the resulting poly(ethene-co-1-octene) copolymers. Force field calculations based on steric arguments were used to explain experimental copolymerization results. Activation energy differences between ethene and 1-octene insertion accounted for improved 1-octene incorporation in the case of benzannelated metallocenes. According to <sup>13</sup>C-NMR microstructure analysis, copolymerization followed first-order Markov statistics.</dcterms:abstract> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-06-24T16:56:06Z</dc:date> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-06-24T16:56:06Z</dcterms:available> <dc:creator>Prosenc, Marc-Heinrich</dc:creator> <dc:creator>Brintzinger, Hans-Herbert</dc:creator> <dc:contributor>Prosenc, Marc-Heinrich</dc:contributor> <dcterms:issued>1997</dcterms:issued> <dc:rights>terms-of-use</dc:rights> <dc:creator>Schneider, Martin Julius</dc:creator> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/23755"/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/> </rdf:Description> </rdf:RDF>