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Open AccessReview

Approaches to Suppress CO2-Induced Plasticization of Polyimide Membranes in Gas Separation Applications

College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
Membrane Science and Technology Research Group, Department of Chemical Engineering, Tarbiat Modares University, Tehran 14115, Iran
Authors to whom correspondence should be addressed.
Processes 2019, 7(1), 51;
Received: 9 November 2018 / Revised: 2 January 2019 / Accepted: 15 January 2019 / Published: 21 January 2019
(This article belongs to the Special Issue Novel Membrane Technologies for Traditional Industrial Processes)
Polyimides with excellent physicochemical properties have aroused a great deal of interest as gas separation membranes; however, the severe performance decay due to CO2-induced plasticization remains a challenge. Fortunately, in recent years, advanced plasticization-resistant membranes of great commercial and environmental relevance have been developed. In this review, we investigate the mechanism of plasticization due to CO2 permeation, introduce effective methods to suppress CO2-induced plasticization, propose evaluation criteria to assess the reduced plasticization performance, and clarify typical methods used for designing anti-plasticization membranes. View Full-Text
Keywords: polyimide; plasticization; membrane; gas separation; carbon dioxide polyimide; plasticization; membrane; gas separation; carbon dioxide
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MDPI and ACS Style

Zhang, M.; Deng, L.; Xiang, D.; Cao, B.; Hosseini, S.S.; Li, P. Approaches to Suppress CO2-Induced Plasticization of Polyimide Membranes in Gas Separation Applications. Processes 2019, 7, 51.

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