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Anthraquinone polymer catalysts for alkaline delignification of lignocellulosic matter. Part 2. Action in soda pulping conditions on softwood and phenolic beta-O-4 lignin models

dc.rights.licenseopen
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorCAZEILS, Emmanuel
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorMEGIATTO, Jackson D., Jr.
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorGARDRAT, Christian
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 2 LCPO : Biopolymers & Bio-sourced Polymers
dc.contributor.authorHAM-PICHAVANT, Frédérique
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 2 LCPO : Biopolymers & Bio-sourced Polymers
dc.contributor.authorGRELIER, Stéphane
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorCASTELLAN, Alain
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2012
dc.identifier.issn0018-3830
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/20481
dc.description.abstractEnTwo hydrophobic and one hydrophilic anthraquinone (AQ) polystyrene catalysts were tested under soda pulping conditions on thermomechanical fibers, and the results were evaluated based on commercial AQ. Hydrophobic and hydrophilic polymers had efficiency gains of 23%-28% and 57%, respectively, compared to AQ (100% efficiency). Hydrosolubility of AQ polymers played a major role in delignification efficiency, a property that allows a better contact with lignocellulosic fibers. Hydrophobic copolymers were stable under pulping conditions and preserved their catalytic effect entirely by contrast to the hydrophilic AQ, as demonstrated by recovery yields after pulping and catalytic action of the recovered copolymers. Studies on lignin models confirmed that the hydrophilic AQ polystyrene is a better catalyst under soda pulping conditions than the hydrophobic ones. It was demonstrated that AQ polystyrene polymers react with lignin models by electron transfer mechanisms.
dc.language.isoen
dc.publisherDe Gruyter
dc.subject.ensoda pulping
dc.subject.enpolystyrene copolymers
dc.subject.enpolymers
dc.subject.enanthraquinone
dc.subject.encatalysts
dc.subject.enelectron transfer
dc.subject.enlignin models
dc.title.enAnthraquinone polymer catalysts for alkaline delignification of lignocellulosic matter. Part 2. Action in soda pulping conditions on softwood and phenolic beta-O-4 lignin models
dc.typeArticle de revue
dc.identifier.doi10.1515/hf-2011-0254
dc.subject.halChimie/Polymères
bordeaux.journalHolzforschung
bordeaux.page691-697
bordeaux.volume66
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.issue6
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-00747654
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00747654v1
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