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Solution and bulk rheological behavior of poly(ethylenes) based on VERSIPOL (TM) catalysts

dc.rights.licenseopen
hal.structure.identifierInstitut Charles Sadron [ICS]
dc.contributor.authorPLENTZ-MENEGHETTI, Simoni
dc.contributor.authorKRESS, Jacky
hal.structure.identifierInstitut Charles Sadron [ICS]
hal.structure.identifierTeam 1 LCPO : Polymerization Catalyses & Engineering
dc.contributor.authorPERUCH, Frédéric
IDREF: 152900748
hal.structure.identifierLaboratoire Léon Brillouin [LLB - UMR 12]
dc.contributor.authorLAPP, Alain
hal.structure.identifierInstitut Charles Sadron [ICS]
dc.contributor.authorDUVAL, Michel
dc.contributor.authorMULLER, René
hal.structure.identifierInstitut Charles Sadron [ICS]
dc.contributor.authorLUTZ, Pierre Joseph
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2005
dc.identifier.issn0032-3861
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/20643
dc.description.abstractEnPalladium catalysts [(ArN=C(Me)-C(Me)=NAr)Pd(CH2)(3)(COOMe)]+BAr4'- (VERSIPO (TM)) or [(ArN=C(Me)-QMe)=NAr) Pd(CH2)(3)(COOMe)]+BF4- (Ar=2,6-i-Pr-2-C6H3, 2,6-Me-2-C6H3 or C6H5 and Ar'=3,5-(CF3)(2)-C6H3) were synthesized and tested, in dichloromethane, for the polymerization of ethylene. The influence of the substituent present on the diimine ligand on the molar mass of the resulting polymers was examined first. Poly(ethylene)s obtained in the presence of catalysts containing the bulky 2,6-i-Pr-2 group, prepared at different ethylene pressures, exhibited almost identical weight average molar mass values, but were characterized by great differences in hydrodynamic volume, radius of gyration and intrinsic viscosity values. These differences were attributed to the evolution of the topology going from hyperbranched to almost linear. Similar observations were made earlier. The major part of the work dealt with new results on the behavior of these PE samples examined in terms of particle scattering function q(5/3) I(q) (Kratky-Porod) plot based on small angle neutron scattering experiments and on the semi-dilute solution behavior. Some results on the bulk rheological properties of these polymers were presented in the last section and corroborated the results obtained in dilute or semi-dilute solution. The data were compared also to PE obtained with other catalysts
dc.language.isoen
dc.publisherElsevier
dc.subject.enbranched polymers
dc.subject.enpalladium
dc.subject.enpoly(ethylene)
dc.title.enSolution and bulk rheological behavior of poly(ethylenes) based on VERSIPOL (TM) catalysts
dc.typeArticle de revue
dc.identifier.doi10.1016/j.polymer.2005.06.119
dc.subject.halChimie/Polymères
bordeaux.journalPolymer
bordeaux.page8913-8925
bordeaux.volume46
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.issue21
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-00397947
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00397947v1
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