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dc.rights.licenseopenen_US
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 2 LCPO : Biopolymers & Bio-sourced Polymers
dc.contributor.authorMÉHEUST, Hélène
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 3 LCPO : Polymer Self-Assembly & Life Sciences
dc.contributor.authorLE MEINS, Jean-Francois
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 2 LCPO : Biopolymers & Bio-sourced Polymers
dc.contributor.authorCRAMAIL, Henri
dc.date.accessioned2021-01-13T15:48:44Z
dc.date.available2021-01-13T15:48:44Z
dc.date.issued2021-01-04
dc.identifier.urioai:crossref.org:10.1021/acsapm.0c01153
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/25769
dc.description.abstractEnThis paper aims to design bio-based polyester as a viscosity modifier for lubricant properties. Bio-based polyricinoleate (PRic) and its saturated homologous polyhydroxystearate (PHS) have been synthesized from fatty acid methyl esters. The polycondensation performed in bulk in a one-step reaction without any purification leads to two series of polyesters within a large range of molecular weights, with Mw between 3 and 130 kg·mol–1. Their thermal properties were investigated. Good thermal stability was observed with degradation temperatures above 300 °C. As expected, PRic appeared to be amorphous with a particularly low glass-transition temperature, while PHS is semicrystalline. A rheological study determined that polyricinoleate entangled when its molecular weight was above 25 kg·mol–1. These two bio-based and biodegradable polymers were then evaluated as viscosity modifiers in both organic and mineral oils. PHS with high molecular weights appeared to be an excellent thickener as well as a good viscosity index improver with a viscosity index (VI) increase above +50 in organic lubricant oil and +64 in mineral oil.
dc.language.isoENen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.sourcecrossref
dc.subject.enpolyricinoleate
dc.subject.enpolyhydroxystearate
dc.subject.enlubricant
dc.subject.enviscosity modifiers
dc.subject.enthickeners
dc.subject.enviscosity index
dc.title.enBio-Based Polyricinoleate and Polyhydroxystearate: Properties and Evaluation as Viscosity Modifiers for Lubricants
dc.typeArticle de revueen_US
dc.identifier.doi10.1021/acsapm.0c01153en_US
dc.subject.halChimie/Polymèresen_US
bordeaux.journalACS Applied Polymer Materials
bordeaux.volume3en_US
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629en_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-03109425
hal.version1
hal.date.transferred2021-01-13T16:27:31Z
hal.exporttrue
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