title: Guar gum as biosourced building block to generate highly conductive and elastic ionogels with poly(ionic liquid) and ionic liquid.
abstract: In this study, we report on the simple and straightforward preparation of ionogels arising from the addition of guar gum (a plant-based polysaccharide) in a solution of precisely-defined poly(ionic liquid) chains (PIL) in imidazolium-based ionic liquid (IL). The development of intermolecular polar interactions (mainly hydrogen bonds) and topologic chain entanglements induces the formation of physical biohybrid ionogels, whose elastic properties can be easily tuned by varying the composition (up to 30000Pa). The combined presence of guar gum and PIL confers excellent dimensional stability to the ionogels with no IL exudation combined with high thermal properties (up to 310°C). The resulting materials are shown to exhibit gel scattering profiles and high conductivities (> 10-4S/cm at 30°C). The benefit linked to the formation of guar/PIL associations in IL medium enables to find a good compromise between the mechanical cohesion and the mobility ensuring the ionic transport.
authors.affiliation: Univ Lyon, INSA Lyon, UMR CNRS 5223, IMP, 17 avenue Jean Capelle, F-69621 Villeurbanne, France.
authors.forename: Biao
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Univ Lyon, Université Lyon 1, UMR CNRS 5223, IMP, 15 Bd. A. Latarjet, F-69622 Villeurbanne, France.
authors.forename: Guillaume
authors.initials: G
authors.lastname: Sudre
authors.affiliation: Univ Lyon, INSA Lyon, UMR CNRS 5223, IMP, 17 avenue Jean Capelle, F-69621 Villeurbanne, France.
authors.forename: Guilhem
authors.initials: G
authors.lastname: Quintard
authors.affiliation: Univ Lyon, Université Lyon 1, UMR CNRS 5223, IMP, 15 Bd. A. Latarjet, F-69622 Villeurbanne, France.
authors.forename: Anatoli
authors.initials: A
authors.lastname: Serghei
authors.affiliation: Univ Lyon, Université Lyon 1, UMR CNRS 5223, IMP, 15 Bd. A. Latarjet, F-69622 Villeurbanne, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: David
authors.affiliation: Univ Lyon, INSA Lyon, UMR CNRS 5223, IMP, 17 avenue Jean Capelle, F-69621 Villeurbanne, France. Electronic address: julien.bernard@insa-lyon.fr.
authors.forename: Julien
authors.initials: J
authors.lastname: Bernard
authors.affiliation: Univ Lyon, INSA Lyon, UMR CNRS 5223, IMP, 17 avenue Jean Capelle, F-69621 Villeurbanne, France. Electronic address: etienne.fleury@insa-lyon.fr.
authors.forename: Etienne
authors.initials: E
authors.lastname: Fleury
authors.affiliation: Univ Lyon, INSA Lyon, UMR CNRS 5223, IMP, 17 avenue Jean Capelle, F-69621 Villeurbanne, France. Electronic address: aurelia.charlot@insa-lyon.fr.
authors.forename: Aurélia
authors.initials: A
authors.lastname: Charlot
mesh_terms: D005685:Galactans / Q000737:chemistry*; D005782:Gels / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D008351:Mannans / Q000737:chemistry*; D053149:Plant Gums / Q000737:chemistry*
chemical_list: D005685:Galactans; D005782:Gels; D052578:Ionic Liquids; D008351:Mannans; D053149:Plant Gums; C007894:guar gum
keywords: Guar gum; Ionic liquid; Ionogels; Poly(ionic liquid); Polymer electrolyte; Polysaccharide