More room for microphase separation: An extended study on binary liquids confined in SBA-15 cylindrical pores.

The confinement of liquid mixtures in porous channels provides new insight into fluid ordering at the nanoscale. In this study, we address a phenomenon of microphase separation, which appears as a novel fascinating confinement effect for fully miscible binary liquids. We investigate the structure of tert-butanol-toluene mixtures confined in the straight and mono-dispersed cylindrical nanochannels of SBA-15 mesoporous silicates (D = 8.

Crossover in structure and dynamics of a primary alcohol induced by hydrogen-bonds dilution.

Primary alcohols show a prominent Debye process in the dielectric relaxation located at a timescale longer than the main structural relaxation. Böhmer and co-workers studied dilution effects of the hydrogen bonding network of n-butanol (BuOH) with n-bromobutane (BuBr) to better understand the origin of this process. Interestingly, this work has evidenced a crossover in Debye relaxation time (τD) for a critical concentration in BuBr xc = 0.