Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature
hal.structure.identifier | Unité de recherche sur les Biopolymères, Interactions Assemblages [BIA] | |
dc.contributor.author | ARNOULD, Audrey | |
hal.structure.identifier | Grupo Biocoloides y nanotecnologías [GBN] | |
dc.contributor.author | PEREZ, Adrian | |
hal.structure.identifier | Unité de recherche sur les Biopolymères, Interactions Assemblages [BIA] | |
dc.contributor.author | GAILLARD, Cédric | |
hal.structure.identifier | Biologie du fruit et pathologie [BFP] | |
dc.contributor.author | DOULIEZ, Jean-Paul | |
hal.structure.identifier | Laboratoire Léon Brillouin [LLB - UMR 12] | |
dc.contributor.author | COUSIN, Fabrice | |
hal.structure.identifier | Grupo Biocoloides y nanotecnologías [GBN] | |
dc.contributor.author | SANTIAGO, Liliana | |
hal.structure.identifier | Tri ionique par les Systèmes Moléculaires auto-assemblés [LTSM] | |
dc.contributor.author | ZEMB, Thomas | |
hal.structure.identifier | Unité de recherche sur les Biopolymères, Interactions Assemblages [BIA] | |
dc.contributor.author | ANTON, Marc | |
hal.structure.identifier | Unité de recherche sur les Biopolymères, Interactions Assemblages [BIA] | |
dc.contributor.author | FAMEAU, Anne-Laure | |
dc.date.issued | 2015-05 | |
dc.identifier.issn | 0021-9797 | |
dc.description.abstractEn | Salt-free catanionic systems based on fatty acids exhibit a broad polymorphism by simply tuning the molar ratio between the two components. For fatty acid combined with organic amino counter-ions, very few data are available on the phase behavior obtained as a function of the molar ratio between the counter-ion and the fatty acid. We investigated the choline hydroxide/myristic acid system by varying the molar ratio, R = ncholine hydroxide/nmyristic acid, and the temperature. Myristic acid ionization state was determined by coupling pH, conductivity and infra-red spectroscopy measurements. Self-assemblies were characterized by small angle neutron scattering and microscopy experiments. Self-assembly thermal behavior was investigated by differential scanning calorimetry, wide angle X-ray scattering and nuclear magnetic resonance. For R < 1, ionized and protonated myristic acid molecules coexisted leading to the formation of facetted self-assemblies and lamellar phases. The melting process between the gel and the fluid state of these bilayers induced a structural change from facetted or lamellar objects to spherical vesicles. For R > 1, myristic acid molecules were ionized and formed spherical micelles. Our study highlights that both R and temperature are two key parameters to finely control the self-assembly structure formed by myristic acid in the presence of choline hydroxide. | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.subject.en | catanionic | |
dc.subject.en | counter-ion | |
dc.subject.en | fatty acid | |
dc.subject.en | molar ratio | |
dc.subject.en | self-assembly | |
dc.title.en | Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1016/j.jcis.2015.01.008 | |
dc.subject.hal | Chimie | |
bordeaux.journal | Journal of Colloid and Interface Science | |
bordeaux.page | 285-293 | |
bordeaux.volume | 445 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-02118206 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-02118206v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Colloid%20and%20Interface%20Science&rft.date=2015-05&rft.volume=445&rft.spage=285-293&rft.epage=285-293&rft.eissn=0021-9797&rft.issn=0021-9797&rft.au=ARNOULD,%20Audrey&PEREZ,%20Adrian&GAILLARD,%20C%C3%A9dric&DOULIEZ,%20Jean-Paul&COUSIN,%20Fabrice&rft.genre=article |
Fichier(s) constituant ce document
Fichiers | Taille | Format | Vue |
---|---|---|---|
Il n'y a pas de fichiers associés à ce document. |