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Polymerization of ethylene using metallocene and aluminoxane systems

dc.contributor.authorJustino, Jorge
dc.contributor.authorDias, A.R.
dc.contributor.authorAscenso, J.
dc.contributor.authorMarques, M.M.
dc.contributor.authorTait, P.J.T.
dc.date.accessioned2023-04-04T14:57:44Z
dc.date.available2023-04-04T14:57:44Z
dc.date.issued1997
dc.description.abstractThis paper describes ethylene polymerization using a number of metal-locene and aluminoxane catalyst systems, Cp2MR2 and methylaluminoxane [M = Zr, W, Nb; R = Cl, CH3]. Two types of methylaluminoxane, MAO (1) and MAO (2), were used as cocatalysts. The polymerization activities of the complexes Cp2WCl2 and Cp2NbCl2 were compared with that of Cp2ZrCl2. The Nb and W complexes were found to be less active than the Zr complex. Polyethylene characterization was also carried out by the following methods: gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and nuclear magnetic resonance (NMR).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationJustino, J.; Dias, A.R.; Ascenso, J.; Marques, M.M. & Tait, P.J.T. (1997). Polymerization of ethylene using metallocene and aluminoxane systems. Polymer International, 44(4): 407-412. https://doi.org/10.1002/(SICI)1097-0126(199712)44:4<407::AID-PI844>3.0.CO;2-1pt_PT
dc.identifier.doihttps://doi.org/10.1002/(SICI)1097-0126(199712)44:4<407::AID-PI844>3.0.CO;2-1pt_PT
dc.identifier.eissn1097-0126
dc.identifier.urihttp://hdl.handle.net/10400.15/4378
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relation.publisherversionhttps://onlinelibrary.wiley.com/doi/10.1002/(SICI)1097-0126(199712)44:4%3C407::AID-PI844%3E3.0.CO;2-1pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectmetallocenept_PT
dc.subjectaluminoxanespt_PT
dc.subjectZiegler-Natta catalysispt_PT
dc.subjectethylene polymerizationpt_PT
dc.subjectactive centrespt_PT
dc.titlePolymerization of ethylene using metallocene and aluminoxane systemspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage412pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage407pt_PT
oaire.citation.titlePolymer Internationalpt_PT
oaire.citation.volume44pt_PT
person.familyNameJustino
person.givenNameJorge
person.identifier.orcid0000-0003-3114-5926
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3e483773-36b8-4a7b-82f3-c0a39f6a7fa9
relation.isAuthorOfPublication.latestForDiscovery3e483773-36b8-4a7b-82f3-c0a39f6a7fa9

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