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The objective of this study was to develop a quantitative structure-property relationship (QSPR) using an artificial neural network (ANN) in order to improve the prediction of gas permeability coefficients of membranes for some major industrial gases, such as O2, N2, CO2, and CH4.Using a polymer data bank based on 149 polymers, a total of 21 descriptors were calculated for all polymers using the group...