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The effect of polymerization temperature on the structure and properties of poly(l-hexene) and poly(l-decene) prepared with a Ni(II)-diimine catalyst

dc.rights.licenseopen
hal.structure.identifierInstituto de Macromoléculas
dc.contributor.authorBOMFIM, Joao
hal.structure.identifierInstituto de Macromoléculas
dc.contributor.authorDIAS, Marcos
hal.structure.identifierDepartamento de Quimica Inorganica [Instituto de Quimica]
dc.contributor.authorFILGUEIRAS, Carlos
hal.structure.identifierLaboratoire de Chimie des polymères organiques [LCPO]
hal.structure.identifierTeam 1 LCPO : Polymerization Catalyses & Engineering
dc.contributor.authorPERUCH, Frédéric
IDREF: 152900748
hal.structure.identifierLaboratoire de Chimie des polymères organiques [LCPO]
dc.contributor.authorDEFFIEUX, Alain
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2008
dc.identifier.issn0920-5861
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/20801
dc.description.abstractEnWhile electron-deficient metal catalysts like Ziegler-Natta and metallocenes are able to polymerize olefins producing linear polyolefins, Ni-diimine catalysts are able to produce polymers of varying structures, ranging from irregular and amorphous to highly linear and crystalline, due to the chain walking mechanism. Our present goal is to study the effect of polymerization temperature on the structure and properties of poly(1-hexene)s and poly(1-decene)s prepared with the catalyst (iPr(2)Ph)(2)BIAN center dot Ni(NCS)(2), where BIAN is the bis(imino)acenaphthene core. The polymers were studied by H-1 and C-13 NMR, SEC and DSC. The results show off important crystallinity increase for samples prepared at high temperature, above 40 degrees C. These results are consistent with a 1,omega insertion mechanism. The latter is also corroborated by NMR study, which shows polymers with a low branch number, and isolated methyl branches predominating for high-temperature samples. Polymerization kinetic studies performed by dilatometry suggest a living character for reactions performed close to 0 degrees C and quick catalyst deactivation at 50 degrees C and above. (c) 2007 Elsevier B.V. All rights reserved.
dc.language.isoen
dc.publisherElsevier
dc.subject.enolefin polymerization
dc.subject.enNi-diimine catalysts
dc.subject.enpseudo-halide catalysts
dc.title.enThe effect of polymerization temperature on the structure and properties of poly(l-hexene) and poly(l-decene) prepared with a Ni(II)-diimine catalyst
dc.typeArticle de revue
dc.identifier.doi10.1016/j.cattod.2007.12.042
dc.subject.halChimie/Polymères
bordeaux.journalCatalysis Today
bordeaux.page879-885
bordeaux.volume133
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-00286569
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00286569v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Catalysis%20Today&rft.date=2008&rft.volume=133&rft.spage=879-885&rft.epage=879-885&rft.eissn=0920-5861&rft.issn=0920-5861&rft.au=BOMFIM,%20Joao&DIAS,%20Marcos&FILGUEIRAS,%20Carlos&PERUCH,%20Fr%C3%A9d%C3%A9ric&DEFFIEUX,%20Alain&rft.genre=article


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