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Cover Image, Volume 59, Issue 7
Publication year - 2021
Publication title -
journal of polymer science
Language(s) - English
Resource type - Reports
eISSN - 2642-4169
pISSN - 2642-4150
DOI - 10.1002/pol.20210189
Subject(s) - permeation , membrane , diffusion , fick's laws of diffusion , volume (thermodynamics) , cover (algebra) , statistical physics , swelling , methanol , materials science , thermodynamics , aqueous solution , polymer , mechanics , computer science , chemistry , physics , engineering , composite material , mechanical engineering , organic chemistry , biochemistry
Intrinsic polymer permeabilities are important to be able to predict membrane performance in use. A rigorous methodology for determining them is described by Frances Houle and colleagues on page 594–613, combining operando measurement techniques, fluid mechanics calculations, and multiscale stochastic reaction‐diffusion simulations. It is demonstrated for a model system, permeation of Nation by aqueous methanol, and is broadly applicable to other membrane materials. The multiscale model can incorporate nonideal time‐dependent behaviors such as swelling and non‐Fickian diffusion when experimental data are analyzed, or systems using membranes are modeled. (DOI: 10.1002/pol.20200771 )