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Hyperbranched polyesters by polycondensation of fatty acid-based ABn-type monomers

dc.rights.licenseopen
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorTESTUD, Blandine
hal.structure.identifierInstitut des Corps Gras [ITERG]
dc.contributor.authorPINTORI, Didier
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 2 LCPO : Biopolymers & Bio-sourced Polymers
dc.contributor.authorGRAU, Etienne
IDREF: 187909261
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 1 LCPO : Polymerization Catalyses & Engineering
dc.contributor.authorTATON, Daniel
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 2 LCPO : Biopolymers & Bio-sourced Polymers
dc.contributor.authorCRAMAIL, Henri
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2017
dc.identifier.issn1463-9262
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/19815
dc.description.abstractEnWidely available vegetable oils were readily derivatized into chemically pure ABn-type monomers (n = 2 or 3). Their polymerization led to unprecedented hyperbranched polyesters. Four different AB2/AB3-type monomers bearing one A-type methyl ester and two or three B-type alcohol functions were purposely synthesized via two elementary steps, i.e. epoxidation of the internal double bond of the vegetable oil precursors followed by ring-opening of the epoxy groups under acidic conditions. The polycondensation of these bio-sourced monomers was performed in bulk, in the presence of an appropriate catalyst, giving access to modular hyperbranched polyesters with tunable properties. Among the catalysts tested, zinc acetate, 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) and sodium methoxide proved the most effective, allowing the achievement of molar masses in the range 3000–10 000 g mol−1 and dispersities varying from 2 to 15, depending on the initial conditions. The degree of branching, DB, as determined by 1H NMR spectroscopy, was found to be between 0.07 and 0.45. The as-devised hyperbranched polyesters displayed either amorphous or semi-crystalline properties, as a function of the selected AB2/AB3-type initial monomers, with a glass transition temperature, Tg, ranging from −33 to 9 °C and a decomposition temperature at 5 wt% of the sample, Td5%, varying from 204 to 340 °C.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.subject.enHyperBranched polymers
dc.subject.enpolyester
dc.subject.enbio-sourced
dc.title.enHyperbranched polyesters by polycondensation of fatty acid-based ABn-type monomers
dc.typeArticle de revue
dc.identifier.doi10.1039/C6GC02294D
dc.subject.halChimie/Polymères
dc.subject.halChimie/Matériaux
dc.subject.halChimie
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
dc.identifier.arxiv1911.07737
bordeaux.journalGreen Chemistry
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-01411564
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01411564v1
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