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

1
College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
2
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; https://doi.org/10.3390/pr7010051
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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