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Growth mechanism of polymer membranes obtained by H-bonding across immiscible liquid interfaces

hal.structure.identifierSciences et Ingénierie de la Matière Molle (UMR 7615) [SIMM]
dc.contributor.authorDUPRÉ DE BAUBIGNY, J
hal.structure.identifierSciences et Ingénierie de la Matière Molle (UMR 7615) [SIMM]
dc.contributor.authorPERRIN, P.
hal.structure.identifierSciences et Ingénierie de la Matière Molle (UMR 7615) [SIMM]
dc.contributor.authorPANTOUSTIER, N.
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorSALEZ, Thomas
hal.structure.identifierGulliver (UMR 7083)
dc.contributor.authorREYSSAT, M.
hal.structure.identifierSciences et Ingénierie de la Matière Molle (UMR 7615) [SIMM]
dc.contributor.authorMONTEUX, C.
dc.date.issued2021
dc.identifier.issn2161-1653
dc.description.abstractEnComplexation of polymers at liquid interfaces is an emerging technique to produce all-liquid printable and self-healing devices and membranes. It is crucial to control the assembly process but the mechanisms at play remain unclear. Using two different reflectometric methods, we investigate the spontaneous growth of H-bonded PPO-PMAA membranes at a flat liquid-liquid interface. We find that the membrane thickness h grows with time t as h~t^(1/2), which is reminiscent of a diffusion-limited process. However, counter-intuitively, we observe that this process is faster as the PPO molar mass increases. We are able to rationalize these results with a model which considers the diffusion of the PPO chains within the growing membrane. The architecture of the latter is described as a gel-like porous network, with a pore size much smaller than the radius of the diffusing PPO chains, thus inducing entropic barriers that hinder the diffusion process. From the comparison between the experimental data and the result of the model, we extract some key piece of information about the microscopic structure of the membrane. This study opens the route toward the rational design of self-assembled membranes and capsules with optimal properties.
dc.language.isoen
dc.publisherWashington, D.C : American Chemical Society
dc.title.enGrowth mechanism of polymer membranes obtained by H-bonding across immiscible liquid interfaces
dc.typeArticle de revue
dc.identifier.doi10.1021/acsmacrolett.0c00847
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
dc.subject.halChimie/Génie chimique
dc.subject.halChimie/Matériaux
dc.subject.halChimie/Polymères
dc.subject.halChimie/Chimie théorique et/ou physique
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Mécanique statistique [cond-mat.stat-mech]
dc.identifier.arxiv2006.16587
bordeaux.journalACS Macro Letters
bordeaux.page204-209
bordeaux.volume10
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02883674
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02883674v1
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