DMSO Deintercalation in Kaolinite–DMSO Intercalate: Influence of Solution Polarity on Removal

This study focused on the deintercalation of dimethyl sulfoxide (DMSO) from a kaolinite–DMSO complex in various solvents. The use kaolinite as filler polymer–clay composite generally faced difficulty dispersion due to its high cohesion. For improved within given matrix, previous intercalation small polar molecules is usually done prior displacement during composite-making. influence solvent polarity analyzed here understand role process. DMSO was by solution-mixing and distilled water, ethyl acetate, acetone. products were using Fourier transform infra-red (FTIR), powder X-ray diffraction (XRD), differential scanning calorimetry (DSC). weakening cohesion after demonstrated through broadening peak associated with XRD patterns. From FTIR spectra, low wavenumbers Si–O or Al–O vibration bands complex. dehydroxylation temperatures DSC show that rate affects ordering recovered kaolinite. crystallite size reduced raw displacement, indicating an exfoliation these results, it found removal influenced polarity. higher polarity, greater Solvent which influences It suggested can be used control DMSO, may key platelets.