Size Effects in Delamination of Poly(methyl methacrylate)–Acetone–Hexane Solution

The role of size effects in microextraction

“…In the general case, stable and metastable states may compete [8][9][10]. Since the deviation from a macrostate is specified by the properties of components (molar volume, surface tension), the droplet size may affect the degree of extraction in a different way, and the next analyzed system proves that.…”

“…The role of size effects in phase equilibria [5][6][7] is examined in the present study in order to interpret this dependence. These effects manifest themselves in phase diagrams as shifts of characteristic temperatures and phase equilibrium lines [7][8][9][10][11]. A change in the composition of coexisting phases alters the distribution coefficients of components and the degrees of microextraction.…”

“…The first description of size effects in ternary systems has been presented in [8][9][10]. It relies on the analysis of closed ternary systems with a core−shell configuration.…”

“…The minima of G(n 1c , n 2c , n 3c ) correspond to equilibrium states. Smallvolume systems may have several equilibrium states, some of them being metastable [7][8][9][10][11]. The composition of the system, the properties of components (molar volume, surface tension), the equation of state of a real solution, and the shape of phase interfaces are model parameters.…”