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Structure, thermodynamic and kinetic signatures of a synthetic polyelectrolyte coacervating system

dc.rights.licenseopen
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 3 LCPO : Polymer Self-Assembly & Life Sciences
dc.contributor.authorLIU, Xiaoqing
dc.contributor.authorCHAPEL, Jean-Paul
hal.structure.identifierTeam 3 LCPO : Polymer Self-Assembly & Life Sciences
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorSCHATZ, Christophe
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2017
dc.identifier.issn0001-8686
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/20145
dc.description.abstractEnWhile many studies on coacervation have targeted biomacromolecules, we review in this article the key structure, thermodynamic and kinetic features of a fully synthetic coacervating system based on polyacrylic acid (PAA) and poly(diallyldimethylammonium chloride) (PDADMAC) oppositely charged polyelectrolytes at pH 10, where PAA chains are fully deprotonated. Among the main points of interest, we can highlight (i) the presence of polyelectrolyte complex (PEC) nanoparticles that, unexpectedly, coexist with a certain amount of coacervate droplets in a large range of compositions, even far from stoichiometry; (ii) the fact that these PEC nanoparticles are likely precursors of the coacervation occurring at stoichiometry; (iii) the formation of soluble PECs only in a certain range of physicochemical conditions; (iv) the equilibrium properties of the system; (v) and last but not least a distinctive kinetic signature at stoichiometry evidenced by a peak in light scattering at very short times (~ 100 ms). Some of these results can be rationalized on the basis of weak interaction unfolding between oppositely charged PAA and PDADMAC chains as revealed by microcalorimetry measurements.
dc.description.sponsorshipAssemblage Macromoléculaire Hors-équilibre Compréhension, Contrôle & nouvelles structures - ANR-13-BS08-0015
dc.language.isoen
dc.publisherElsevier
dc.subject.enPoly(diallyldimethylammonium) chloride
dc.subject.enPoly(acrylic acid)
dc.subject.enPolyelectrolyte complexation
dc.subject.enCoacervation
dc.title.enStructure, thermodynamic and kinetic signatures of a synthetic polyelectrolyte coacervating system
dc.typeArticle de revue
dc.identifier.doi10.1016/j.cis.2016.10.004
dc.subject.halChimie/Matériaux
dc.subject.halChimie/Polymères
bordeaux.journalAdvances in Colloid and Interface Science
bordeaux.page178-186
bordeaux.volume239
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-01448614
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01448614v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Advances%20in%20Colloid%20and%20Interface%20Science&rft.date=2017&rft.volume=239&rft.spage=178-186&rft.epage=178-186&rft.eissn=0001-8686&rft.issn=0001-8686&rft.au=LIU,%20Xiaoqing&CHAPEL,%20Jean-Paul&SCHATZ,%20Christophe&rft.genre=article


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