Publikation: Catalytic Polymerization of Ethylene in Aqueous Emulsion with a Simple in Situ Catalyst
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
Link zur Lizenz
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Core Facility der Universität Konstanz
Titel in einer weiteren Sprache
Publikationstyp
Publikationsstatus
Erschienen in
Zusammenfassung
Catalytic polymerization of ethylene in aqueous emulsion by in situ catalysts based entirely on compounds commercially available from standard chemicals suppliers, namely a chlorinated derivative of 1,4-benzoquinone, triphenylphosphine, and bis(1,5-cyclooctadiene)nickel, is reported. Using miniemulsions of catalyst solutions in a small amount of hydrocarbon solvent for polymerization, stable dispersions of linear semicrystalline polyethylene are obtained. With 2,3,5,6-tetrachloro-1,4-benzoquinone as the quinone component, polyethylenes with molecular weights (Mn up to 3 X 1000 g mol-1) clearly exceeding the entanglement limit are accessible. The catalyst is stable in water for hours with productivities of up to 2 X 1000 mol(ethylene) mol(Ni)-1 h-1. Productivities and molecular weights are in the same range for conventional polymerization in organic solvents. Polyethylene dispersions with solids contents of up to 28% are obtained. Aqueous dispersions of ethylene/1-butene copolymers with comonomer incorporations of up to 3 mol % (6 wt %) were prepared.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
Schlagwörter
Konferenz
Rezension
Zitieren
ISO 690
BAUERS, Florian Martin, Mubarik M. CHOWDHRY, Stefan MECKING, 2003. Catalytic Polymerization of Ethylene in Aqueous Emulsion with a Simple in Situ Catalyst. In: Macromolecules. 2003, 36(18), pp. 6711-6715. ISSN 0024-9297. eISSN 1520-5835. Available under: doi: 10.1021/ma034164mBibTex
@article{Bauers2003Catal-9640, year={2003}, doi={10.1021/ma034164m}, title={Catalytic Polymerization of Ethylene in Aqueous Emulsion with a Simple in Situ Catalyst}, number={18}, volume={36}, issn={0024-9297}, journal={Macromolecules}, pages={6711--6715}, author={Bauers, Florian Martin and Chowdhry, Mubarik M. and Mecking, Stefan} }
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/123456789/9640"> <dcterms:abstract xml:lang="eng">Catalytic polymerization of ethylene in aqueous emulsion by in situ catalysts based entirely on compounds commercially available from standard chemicals suppliers, namely a chlorinated derivative of 1,4-benzoquinone, triphenylphosphine, and bis(1,5-cyclooctadiene)nickel, is reported. Using miniemulsions of catalyst solutions in a small amount of hydrocarbon solvent for polymerization, stable dispersions of linear semicrystalline polyethylene are obtained. With 2,3,5,6-tetrachloro-1,4-benzoquinone as the quinone component, polyethylenes with molecular weights (Mn up to 3 X 1000 g mol-1) clearly exceeding the entanglement limit are accessible. The catalyst is stable in water for hours with productivities of up to 2 X 1000 mol(ethylene) mol(Ni)-1 h-1. Productivities and molecular weights are in the same range for conventional polymerization in organic solvents. Polyethylene dispersions with solids contents of up to 28% are obtained. Aqueous dispersions of ethylene/1-butene copolymers with comonomer incorporations of up to 3 mol % (6 wt %) were prepared.</dcterms:abstract> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:creator>Bauers, Florian Martin</dc:creator> <dc:creator>Mecking, Stefan</dc:creator> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9640/1/Catalytic_Polymerization_of_Ethylene.pdf"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/9640"/> <dcterms:bibliographicCitation>First publ. in: Macromolecules ; 36 (2003), 18. - S. 6711-6715</dcterms:bibliographicCitation> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9640/1/Catalytic_Polymerization_of_Ethylene.pdf"/> <dcterms:title>Catalytic Polymerization of Ethylene in Aqueous Emulsion with a Simple in Situ Catalyst</dcterms:title> <dc:contributor>Chowdhry, Mubarik M.</dc:contributor> <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights> <dc:language>eng</dc:language> <foaf:homepage rdf:resource="http://localhost:8080/"/> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9640/2/Supporting_Information_Catalytic_Polymerization_of_Ethylene.pdf"/> <dc:contributor>Bauers, Florian Martin</dc:contributor> <dc:format>application/pdf</dc:format> <dcterms:issued>2003</dcterms:issued> <dc:contributor>Mecking, Stefan</dc:contributor> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9640/2/Supporting_Information_Catalytic_Polymerization_of_Ethylene.pdf"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/> <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/> <dc:creator>Chowdhry, Mubarik M.</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:13:23Z</dc:date> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/> </rdf:Description> </rdf:RDF>