Wettability, FTIR and dielectric studies of 1,4-dioxane and water system

Wettability studies are of importance for electronic devices. Various methods are known to convert the hydrophobic substrates to hydrophilic substrates, but the studies on the relative dependence of wettability with varying concentrations of an aqueous system are meager. The wetting of different substrates with varying concentration of 1,4-dioxane in water is investigated and the results of concentration dependence of wetting are presented. The FTIR spectrum shows a blue shift of the OH peak – a feature typical of aqueous-1,4-dioxane systems. Concentration dependence of dielectric permittivity of this system also showed an anomaly.

Studies of concentration dependent FTIR, dielectric and wetability of aqueous 1,4-dioxane show distinct regions of interactions. The formation of clathrates is verified through contact angle measurements over various substrates and FTIR spectra.Figure optionsDownload high-quality image (88 K)Download as PowerPoint slideResearch highlights
► Concentration dependent wettability of aqueous 1,4-dioxane over different substrates.
► Distinct concentrations corresponding to different interaction mechanisms are seen.
► Formation of bifurcated hydrogen bonds is seen in the blue shift in IR spectra.
► Clathrate formation is verified through contact angles over all substrates studied.