Ionogels of a Sugar Surfactant in Ionic Liquids

Abstract

Green and environmentally friendly ionogels formed by a sugar surfactant were prepared in two kinds of imidazolium-based ionic liquids. The phase transition from ribbon structures to lamellar structures induced by temperature and the transition mechanism were investigated in detail by means of freeze-fracture TEM and field-emission SEM observations, as well as small-angle X-ray scattering measurements. The rheological properties and tribological properties of two kinds of ionogels were systematically investigated. The difference in the lubricating properties and antiwear capability can be explained well by the mechanical and viscoelastic properties, as well as the different microstructures of samples destroyed by shear forces. This work provides a better understanding of the relationship between the structures, rheological properties, and tribological properties of ionogels.

Metallosurfactant Ionogels in Imidazolium and Protic Ionic Liquids as Precursors To Synthesize Nanoceria as Catalase Mimetics for the Catalytic Decomposition of H2O2

“…[1][2][3][4][5] Ionogels referringt ot he solidification of ILs, not only meet the demando ft he gel-state application of ILs, but also furthere xpand their scope of applications. [11,14] Ionogels can be preparedb ya dding different additives, including low-molecular-weight gelators (LMWGs); [9,13,15] polymers; [14,16,17] inorganics, such as silica; carbon dots, [18,19] and hybrid materials. [11,14] Ionogels can be preparedb ya dding different additives, including low-molecular-weight gelators (LMWGs); [9,13,15] polymers; [14,16,17] inorganics, such as silica; carbon dots, [18,19] and hybrid materials.…”

“…[11,14] Ionogels can be preparedb ya dding different additives, including low-molecular-weight gelators (LMWGs); [9,13,15] polymers; [14,16,17] inorganics, such as silica; carbon dots, [18,19] and hybrid materials. They can self-assemble into various microstructures [9,12,13,15] through noncovalent interactions, such as hydrogen bonding, electrostatic interactions, coordination, and van der Waals forces. They can self-assemble into various microstructures [9,12,13,15] through noncovalent interactions, such as hydrogen bonding, electrostatic interactions, coordination, and van der Waals forces.…”

“…[22,23] The dicationic organic salts displayed good gelation ability for variousI Ls and provided useful information about the preparation of ionogels. [12,13,15,25,26] However,f ew efforts have been madet oi nvestigate the influence of types and characteristics of imidazolium ILs on ionogel properties. [24] Ionogels formedb yi midazolium ILs are the most investigated type,a nd many reports have been reported.…”

“…The advantage of LMWGs is the easy design of structures, although applications of ionogels formed by LMWGs need to be further expanded. [13] Ionogel materials have been utilized in multiple application fields. [12,13,15,25,26] However,f ew efforts have been madet oi nvestigate the influence of types and characteristics of imidazolium ILs on ionogel properties.…”

“…[13] Ionogel materials have been utilized in multiple application fields. [9,12,13,30,31] Little work has been reported concerning the preparation of nanomaterials by using ionogelsa s precursors. [20,[27][28][29] Some other applications, such as lubrication materials, gass eparation materials, and drug delivery,h ave also been reported.…”