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hal.structure.identifierLaboratoire Rhéologie et Procédés [LRP]
dc.contributor.authorCHACHANIDZE, Revaz
hal.structure.identifierLaboratoire Rhéologie et Procédés [LRP]
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorXIE, Kaili
hal.structure.identifierLaboratoire Rhéologie et Procédés [LRP]
dc.contributor.authorMASSAAD, Hanna
hal.structure.identifierLaboratoire Rhéologie et Procédés [LRP]
dc.contributor.authorROUX, Denis
hal.structure.identifierLaboratoire Rhéologie et Procédés [LRP]
dc.contributor.authorDE LOUBENS, Clément
hal.structure.identifierCentre Interdisciplinaire de Nanoscience de Marseille [CINaM]
hal.structure.identifierLaboratoire Rhéologie et Procédés [LRP]
dc.contributor.authorLEONETTI, Marc
dc.date.issued2022-06
dc.description.abstractEnControlling the assembly of polyelectrolytes and surfactant at liquid-liquid interfaces offers new ways to fabricate soft materials with specific physical properties. However, little is known of the relationships between the kinetics of interfacial assembly, structural and rheological properties of such interfaces. We studied the kinetics at water-oil interface of the assembly of a positively charged biopolymer, chitosan, with an anionic fatty acid using a multi-scale approach. The growth kinetics of the membrane was followed by interfacial rheometry and space-and time-resolved dynamic light scattering. This set of techniques revealed that the interfacial complexation was a multi-step process. At short timescale , the interface was fluid and made of heterogeneous patches. At a 'gelation' time, the surface elastic modulus and the correlation between speckles increased sharply meaning that the patches percolated. Confocal and electron microscopy confirmed this picture, and revealed that the basic brick of the membrane was sub-micrometric aggregates of chitosan / fatty acid.
dc.description.sponsorshipIngénierie de la Complexité : la mécanique et ses interfaces au service des enjeux sociétaux du 21iè - ANR-11-LABX-0030
dc.description.sponsorshipDes écoulements interfaciaux aux viscosités de surface - ANR-18-CE06-0008
dc.language.isoen
dc.subject.enmembrane
dc.subject.eninterface
dc.subject.enrheology
dc.subject.endynamic light scattering
dc.subject.enpolyelectrolyte
dc.subject.enbiopolymer
dc.title.enStructural characterization of the interfacial self-assembly of chitosan with oppositely charged surfactant
dc.typeDocument de travail - Pré-publication
dc.identifier.doi10.1016/j.jcis.2022.01.143
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
bordeaux.page911-920
hal.identifierhal-04328588
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04328588v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2022-06&rft.spage=911-920&rft.epage=911-920&rft.au=CHACHANIDZE,%20Revaz&XIE,%20Kaili&MASSAAD,%20Hanna&ROUX,%20Denis&DE%20LOUBENS,%20Cl%C3%A9ment&rft.genre=preprint


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