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9 months ago in Material Science By Kumar
How to model gas going from a liquid into a polymer with no air in between?
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By Hema Answered 2 months ago
Think of it as two equilibrium steps in series. First, the gas dissolves in the liquid according to Henry's Law: C_liquid = H × P. But with no headspace, there's no gas phase—so the liquid itself becomes the reservoir. Then, the dissolved gas partitions from the liquid into the polymer. You need a polymer-liquid partition coefficient (K_pl): C_polymer = K_pl × C_liquid. Measure or estimate K_pl, and you're set.
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