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Fast Access to Dendrimer-like Poly(ethylene oxide)s through Anionic Ring-Opening Polymerization of Ethylene Oxide and Use of Nonprotected Glycidol as Branching Agent

dc.rights.licenseopen
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorFENG, Xiaoshuang
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 1 LCPO : Polymerization Catalyses & Engineering
dc.contributor.authorTATON, Daniel
hal.structure.identifierLab Biomol Mat Res [LBMR]
dc.contributor.authorCHAIKOF, Elliot L.
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorGNANOU, Yves
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2009
dc.identifier.issn0141-8130
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/20582
dc.description.abstractEnDendrimer-like poly(ethylene oxide)s (PEOs) were synthesized through a semicontinuous process based on the anionic ring-opening polymerization (AROP) of ethylene oxide (EO), followed by AROP of a mixture of glycidol (G) and propylene oxide (PO). Glycidol was used as branching agent generating two hydroxyl groups after ring-opening, whereas propylene oxide served to prevent the aggregation of the generated terminal alkoxides. A three-armed PEO star was first prepared through AROP of EO from 1,1,1-tris(hydroxymethyl)ethane as trifunctional precursor using dimethyl sulfoxide (DMSO) as solvent. After completion of EO polymerization and without isolating the PEO star precursor, G and PO (molar ratio 1:3) were added in the same batch to be polymerized either sequentially or randomly. This led to a, three-armed PEO star with an average number of terminal hydroxyls per arm which depended on the number of G units inserted at PEO chain ends, as determined by H-1 NMR spectroscopy. Growth of the second and the third generation of PEO could be achieved upon reiterating the same steps of AROP of EO and subsequent AROP of G and PO (arborization step) in one pot, affording dendrimer-like PEOs of generation 3 with moderately distributed but expected molar masses. In a variant of this strategy, G was copolymerized in the presence of allyl glycidyl ether during the arborization step in order to introduce allylic double bonds at the branching points of the dendrimer-like PEOs.
dc.language.isoen
dc.publisherElsevier
dc.subject.enMETHODOLOGY
dc.subject.enSTARS
dc.subject.enPOLYMERS
dc.subject.enMOLECULES
dc.subject.enOLIGOMERS
dc.subject.enHYPERBRANCHED POLYGLYCEROLS
dc.subject.enPOLYETHER-POLYOLS
dc.subject.enBLOCK-COPOLYMERS
dc.subject.enONE-POT
dc.subject.enDERIVATIVES
dc.title.enFast Access to Dendrimer-like Poly(ethylene oxide)s through Anionic Ring-Opening Polymerization of Ethylene Oxide and Use of Nonprotected Glycidol as Branching Agent
dc.typeArticle de revue
dc.identifier.doi10.1021/ma901323f
dc.subject.halChimie/Polymères
bordeaux.journalInternational Journal of Biological Macromolecules
bordeaux.page7292-7298
bordeaux.volume42
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.issue19
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-00504905
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00504905v1
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