Abstract
This paper reports development and validation of a thermokinetic model capable of tracking time-dependent water penetration and the corresponding swelling in polymeric membranes, polybenzimidazoles as case study here. This attempt is highly important as the effect of water in separation performance and properties of membrane is a hot topic to understand the separation mechanism. Specially as humidity in feed gas is common in most of industrial gas separation processes noting that water penetration can cause swelling which may result in variation in mass transport and mechanical deformation in form of thickness change. We compared model calculation to relevant reported data showing robustness of developed thermokinetic model.
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