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. 2020 Feb 13;12(2):441. doi: 10.3390/polym12020441

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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CO₂ permeance (GPU) in T1 membranes that were dried in air or solvent-exchanged. Tests carried out just after the preparation or after long-term aging.