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Schematic representation at the vapor saturation condition, five processes are described: (a) methyl alcohol and water remain in vapor state; (b) MeOH and water vapors partially condense, above and between PS nanobeads; (c) methanol vapor condenses in a more efficient way, due to the capillary condensation; (d) MeOH vapors condense completely inside the PC; and (e) MeOH vapors condense and swell PS particles.
