Abstract:In
the immersion precipitation process for membrane formation,
a polymer casting film is placed in contact with a nonsolvent in a
coagulation bath; an essential feature of the membrane formation process
is the foray into the metastable region of the ternary phase diagram
for the nonsolvent/solvent/polymer system. The primary objective of
this article is to trace the origins of such forays. The Maxwell–Stefan
diffusion formulation is combined with the Flory–Huggins description
of phase equilibrium thermodynamic… Show more
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