Ionic Liquid/Na-Bentonite/Microcrystalline Cellulose Ionogels as Conductive Multifunctional Materials

For the synthesis of ionogels containing microcrystalline cellulose (MCC) and Na-bentonite (Na-Bent), ionic liquid (IL) 1-butyl-3-methylimidazolium acetate was used as an MCC solvent. Characterization and research of the physicochemical properties of the synthesized materials were carried out using methods such as SEM, WAXS, thermal analysis, FTIR, conductometry, and viscometry. WAXS analysis showed an increase in the interlayer distance of Na-bentonite in composites due to the intercalation of IL molecules. Based on the data on the characteristic temperatures of thermal degradation, enhanced thermal stability of triple IL/Na-Bent/MCC ionogels was revealed compared to that for cellulose-free systems. It was found that the electrical conductivity of both triple IL/Na-Bent/MCC and binary IL/MCC ionogels was non-monotonous. The data obtained can be used in the formation of multifunctional coatings with enhanced thermal stability.

Automated summary

In this study, ionogels containing microcrystalline cellulose (MCC) and Na-bentonite (Na-Bent) were synthesized using an ionic liquid solvent. The physicochemical properties of the synthesized materials were characterized and researched using various methods such as SEM, WAXS, thermal analysis, FTIR, conductometry, and viscometry. The results showed that the interlayer distance of Na-bentonite in the composites increased due to intercalation of the ionic liquid molecules. It was also found that the triple ionogels (IL/Na-Bent/MCC) exhibited enhanced thermal stability and the electrical conductivity of both triple and binary ionogels showed non-monotonous behavior.