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Hybrid organogels and aerogels from co-assembly of structurally different low molecular weight gelators

hal.structure.identifierDepartment of Organic Chemistry
dc.contributor.authorBANERJEE, Supratim
hal.structure.identifierDepartment of Organic Chemistry
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorRAJAT, Das K.
hal.structure.identifierStructures et propriétés d'architectures moléculaire [SPRAM - UMR 5819]
dc.contributor.authorTERECH, Pierre
hal.structure.identifierService de Physique des Matériaux et Microstructures [SP2M - UMR 9002]
dc.contributor.authorDE GEYER, Arnaud
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLOPPINET-SERANI, Anne
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorRAFFY, Guillaume
hal.structure.identifierDepartment of Organic Chemistry
dc.contributor.authorMAITRA, Uday
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDEL GUERZO, André
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDESVERGNE, Jean-Pierre
dc.date.issued2013
dc.identifier.issn2050-7526
dc.description.abstractEnThe blending of perfluorinated bile ester derivatives with the gelator 2,3-didecyloxyanthracene (DDOA) yields a new class of hybrid organo- and aerogels displaying a combination of optical and mechanical properties that differ from those of pure gels. Indeed, the nanofibers constituting the hybrid organogels emit polarized blue light and display dichroic near-UV absorption via the achiral DDOA molecules, thanks to their association with a chiral bile ester. Moreover, the thermal stability and the mechanical yield stress of the mixed organogels in DMSO are enhanced for blends of DDOA with the deoxycholic gelator (DC11) having a C11 chain, as compared to the pure components' gels. When the chain length of the ester is increased to C13 (DC13) a novel compound for aerogel formation directly in scCO2 is obtained under the studied conditions. A mixture of this compound with DDOA is also able to gelate scCO2 leading to novel composite aerogel materials. As revealed by SAXS measurements, the hybrid and the pure DDOA and DC13 aerogels display cell parameters that are very similar. These SAXS experiments suggest that crystallographic conditions are very favorable for the growth of hybrid molecular arrangements in which DDOA and DC13 units could be interchanged. Specific molecular interactions between two components are not always a pre-requisite condition for the formation of a hybrid nanostructured material in which the components mutually induce properties.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.subject.enOrganics compounds
dc.subject.enPhysical properties
dc.subject.enGels
dc.subject.enHybrid materials
dc.title.enHybrid organogels and aerogels from co-assembly of structurally different low molecular weight gelators
dc.typeArticle de revue
dc.identifier.doi10.1039/C3TC30104D
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Materials Chemistry C
bordeaux.page3305-3316
bordeaux.volume1
bordeaux.issue20
bordeaux.peerReviewedoui
hal.identifierhal-00828042
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00828042v1
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