Publicação
Ethylene polymerisation with zirconocene supported in Al-modified MCM-41: catalytic behaviour and polymer properties
| dc.contributor.author | Campos, João M. | |
| dc.contributor.author | Ribeiro, M. R. | |
| dc.contributor.author | Lourenço, J. P. | |
| dc.contributor.author | Fernandes, A. | |
| dc.date.accessioned | 2013-01-07T14:30:14Z | |
| dc.date.available | 2013-01-07T14:30:14Z | |
| dc.date.issued | 2007 | |
| dc.date.updated | 2013-01-03T10:29:25Z | |
| dc.description.abstract | Heterogeneous olefin polymerisation catalysts were prepared by combining zirconocene with a series of purely siliceous and Al-containingMCM- 41 supports with different Si/Al ratios, using simplified and improved versions of the well-known direct impregnation and “MAO pre-treatment” methods. The catalysts were tested in ethylene polymerisation. Analysis of polymerisation activities and kinetic profiles led to a rationalisation on the effect of support Si/Al ratios and methods used for catalyst preparation over the catalytic behaviour for ethylene polymerisations. Polymers were characterised by scanning electron microscopy and differential scanning calorimetry. A mechanism is proposed to associate the formation or absence of fibrous morphology with polymerisation activities. | por |
| dc.identifier.citation | Campos, J. M.; Ribeiro, M. R.; Lourenço, J. P.; Fernandes, A. Ethylene polymerisation with zirconocene supported in Al-modified MCM-41: catalytic behaviour and polymer properties, Journal of Molecular Catalysis A: Chemical, 277, 93-101, 2007. | por |
| dc.identifier.issn | 1381-1169 | |
| dc.identifier.other | AUT: JLO01215; | |
| dc.identifier.uri | http://hdl.handle.net/10400.1/2061 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Elsevier | por |
| dc.subject | Zirconocene | por |
| dc.subject | Nanofibres | por |
| dc.subject | Ethylene polimerisation | por |
| dc.subject | Supported catalyst | por |
| dc.subject | MCM-41 | por |
| dc.title | Ethylene polymerisation with zirconocene supported in Al-modified MCM-41: catalytic behaviour and polymer properties | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 101 | por |
| oaire.citation.startPage | 93 | por |
| oaire.citation.title | Journal of Molecular Catalysis A | por |
| oaire.citation.volume | 277 | por |
| person.familyName | Lourenço | |
| person.givenName | João P. | |
| person.identifier | 634248 | |
| person.identifier.ciencia-id | F81F-A1F0-2A7C | |
| person.identifier.orcid | 0000-0002-0501-6672 | |
| person.identifier.rid | A-7758-2008 | |
| person.identifier.scopus-author-id | 57195730600 | |
| rcaap.rights | restrictedAccess | por |
| rcaap.type | article | por |
| relation.isAuthorOfPublication | f66ab886-d989-4c1d-9550-527507723c26 | |
| relation.isAuthorOfPublication.latestForDiscovery | f66ab886-d989-4c1d-9550-527507723c26 |