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Combination of phosphazene base and triisobutylaluminum for the rapid synthesis of polyhydroxy telechelic poly(propylene oxide)
| dc.rights.license | open | |
| hal.structure.identifier | Laboratoire de Chimie des Polymères Organiques [LCPO] | |
| dc.contributor.author | BROCAS, Anne-Laure | |
| hal.structure.identifier | Laboratoire de Chimie des Polymères Organiques [LCPO] | |
| dc.contributor.author | DEFFIEUX, Alain | |
| hal.structure.identifier | Laboratoire de Chimie des Polymères Organiques [LCPO] | |
| dc.contributor.author | LE MALICOT, Nicolas | |
| hal.structure.identifier | Laboratoire de Chimie des Polymères Organiques [LCPO] | |
| hal.structure.identifier | Team 1 LCPO : Polymerization Catalyses & Engineering | |
| dc.contributor.author | CARLOTTI, Stéphane | |
| dc.date.accessioned | 2020 | |
| dc.date.available | 2020 | |
| dc.date.issued | 2012 | |
| dc.identifier.issn | 1759-9954 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/20459 | |
| dc.description.abstractEn | Anionic ring-opening polymerization of propylene oxide, initiated with protonated phosphazene alkoxides and based on monomer activation with a Lewis acid, is investigated. Alcohols bearing one or several protected hydroxyl groups, namely 1,2-isopropylideneglycerol, 1,2: 3,4-di-O-isopropylidene-D-galactopyranose and poly(propylene glycol), are firstly deprotonated with a phosphazene base. Their combination with triisobutylaluminum enables quantitative and controlled synthesis of poly(propylene oxide) in a very short time (hours), at room temperature and in hydrocarbons. The chain-ends determination showed a main population initiated by the protonated phosphazene alkoxide. A population coming from the residual transfer to monomer is also observed but in very low intensity. Molar masses of 80 000 g mol(-1) with relatively narrow dispersity could be prepared. After deprotection of protected hydroxyl functions, tri- and penta-hydroxy telechelic poly(propylene oxide) were obtained. Dihydroxy telechelic polymers of high molar masses are also rapidly and directly synthesized from poly (propylene glycol). | |
| dc.language.iso | en | |
| dc.publisher | Royal Society of Chemistry - RSC | |
| dc.subject.en | PHOSPHONIUM CATALYSTS | |
| dc.subject.en | ALKYLLITHIUM INITIATORS | |
| dc.subject.en | CROWN-ETHER | |
| dc.subject.en | RING-OPENING POLYMERIZATION | |
| dc.subject.en | ACTIVATED ANIONIC-POLYMERIZATION | |
| dc.subject.en | POTASSIUM TERT-BUTOXIDE | |
| dc.subject.en | PROPYLENE-OXIDE | |
| dc.subject.en | ETHYLENE-OXIDE | |
| dc.subject.en | BLOCK-COPOLYMERS | |
| dc.subject.en | MECHANICAL-PROPERTIES | |
| dc.title.en | Combination of phosphazene base and triisobutylaluminum for the rapid synthesis of polyhydroxy telechelic poly(propylene oxide) | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1039/c2py20014g | |
| dc.subject.hal | Chimie/Polymères | |
| bordeaux.journal | Polymer Chemistry | |
| bordeaux.page | 1189-1195 | |
| bordeaux.volume | 3 | |
| bordeaux.hal.laboratories | Laboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629 | * |
| bordeaux.issue | 5 | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00762790 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00762790v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Polymer%20Chemistry&rft.date=2012&rft.volume=3&rft.issue=5&rft.spage=1189-1195&rft.epage=1189-1195&rft.eissn=1759-9954&rft.issn=1759-9954&rft.au=BROCAS,%20Anne-Laure&DEFFIEUX,%20Alain&LE%20MALICOT,%20Nicolas&CARLOTTI,%20St%C3%A9phane&rft.genre=article |
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