ONE MORE PARAMETER DETERMINING THE STRATIFICATION OF SOLUTIONS IN SMALL-VOLUME DROPLETS

A thermodynamic approach has been used to consider the eff ects of the composition and size of micro- and nanosized droplets of binary stratifying organic mixtures on phase equilibria. Using the examples of water–phenol and polybutadiene–polystyrene systems, it has been shown that, unlike macroscale structures, in microsized droplets, it is not only the volume fraction of coexisting phases but also mutual solubility of components that vary as a function of the initial composition of a mixture. The initial composition of the mixture also determines the pattern of solubility dependences on the droplet volume, which is due to the occurrence of various mechanisms of reduction in the free energy of the system in mixtures of various compositions
   
Author:  A. V. Shishulina, A. V. Shishulina
Keywords:  disperse systems, phase transformations, core–shell, solution stratifi cation, solubility
Page:  1374