Three-in-one polyimide-based blended membrane for Upgrading helium separation performance and physical aging resistance
Polyimide membranes have attracted considerable attention for gas separation applications; however, achieving efficient helium (He) separation remains a significant challenge due to the low fractional free volume (FFV) and poorly controlled pore size distribution. Here, we report a novel three-in-on...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2025-01-01
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| Series: | Advanced Membranes |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772823425000132 |
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| author | Bingbing Gao Yiran Peng Ming Wu Hua Ma Jianchao Sun Peng Zhang Xingzhong Cao Like Ouyang Xiaobin Fu Chunfang Zhang Yunxiang Bai Lijun Liang Yang Liu Liangliang Dong |
| author_facet | Bingbing Gao Yiran Peng Ming Wu Hua Ma Jianchao Sun Peng Zhang Xingzhong Cao Like Ouyang Xiaobin Fu Chunfang Zhang Yunxiang Bai Lijun Liang Yang Liu Liangliang Dong |
| author_sort | Bingbing Gao |
| collection | DOAJ |
| description | Polyimide membranes have attracted considerable attention for gas separation applications; however, achieving efficient helium (He) separation remains a significant challenge due to the low fractional free volume (FFV) and poorly controlled pore size distribution. Here, we report a novel three-in-one polyimide-based blended membrane constructed from a polymer (6FDA-TFMB) and alkynyl-based polyimide (EBPA-TB) matrix via thermal crosslinking. By carefully designing membrane synthesis and structure, the resulting membrane achieves the “1 + 1>2” effect: (i) high He selectivity derived from reinforced interphase adhesion and size-sieving ability due to the hydrogen bonding and similar structure between 6FDA-TFMB and EBPA-TB; (ii) high He permeability derived from the rigid cross-linked network distorting the EBPA-TB chain packing and generating additional free volume; (iii) high anti-aging performance derived from the thermal crosslinking preventing microstructural rearrangements. The optimal membrane an unprecedented combination of high He permeability (51.24 Barrer), excellent He/N2 selectivity (146.40) and remarkable aging resistance (less than 3.97 % of permeability decrease over 50 days), outperforming the performance of state-of-the-art polyimide-based blended membranes for He purification. This three-in-one blended membrane construction strategy provides a general toolbox for the development of next-generation, high-performance blended membranes with desirable performance for diverse industrial applications. |
| format | Article |
| id | doaj-art-7d04d234a0d147e19c7f0d9da72fe883 |
| institution | OA Journals |
| issn | 2772-8234 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Advanced Membranes |
| spelling | doaj-art-7d04d234a0d147e19c7f0d9da72fe8832025-08-20T02:10:20ZengKeAi Communications Co. Ltd.Advanced Membranes2772-82342025-01-01510013910.1016/j.advmem.2025.100139Three-in-one polyimide-based blended membrane for Upgrading helium separation performance and physical aging resistanceBingbing Gao0Yiran Peng1Ming Wu2Hua Ma3Jianchao Sun4Peng Zhang5Xingzhong Cao6Like Ouyang7Xiaobin Fu8Chunfang Zhang9Yunxiang Bai10Lijun Liang11Yang Liu12Liangliang Dong13Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, PR ChinaCollege of Automation, Hangzhou Dianzi University, Hangzhou, 310018, PR ChinaCollege of Automation, Hangzhou Dianzi University, Hangzhou, 310018, PR ChinaKey Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, PR ChinaDepartment of Molten Salt Chemistry and Engineering, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, PR ChinaInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, PR ChinaInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, PR ChinaLow-carbon Technology & Chemical Reaction Engineering Lab, School of Chemical Engineering, Sichuan University, Chengdu, 610065, PR ChinaDepartment of Molten Salt Chemistry and Engineering, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, PR ChinaKey Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, PR ChinaKey Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, PR ChinaCollege of Automation, Hangzhou Dianzi University, Hangzhou, 310018, PR China; Corresponding author.Key Laboratory of Bio-based Materials Science & Technology, Ministry of Education, College of Material Science and Engineering, Northeast Forestry University, Harbin, 150040, PR China; Corresponding author.Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, PR China; Corresponding author.Polyimide membranes have attracted considerable attention for gas separation applications; however, achieving efficient helium (He) separation remains a significant challenge due to the low fractional free volume (FFV) and poorly controlled pore size distribution. Here, we report a novel three-in-one polyimide-based blended membrane constructed from a polymer (6FDA-TFMB) and alkynyl-based polyimide (EBPA-TB) matrix via thermal crosslinking. By carefully designing membrane synthesis and structure, the resulting membrane achieves the “1 + 1>2” effect: (i) high He selectivity derived from reinforced interphase adhesion and size-sieving ability due to the hydrogen bonding and similar structure between 6FDA-TFMB and EBPA-TB; (ii) high He permeability derived from the rigid cross-linked network distorting the EBPA-TB chain packing and generating additional free volume; (iii) high anti-aging performance derived from the thermal crosslinking preventing microstructural rearrangements. The optimal membrane an unprecedented combination of high He permeability (51.24 Barrer), excellent He/N2 selectivity (146.40) and remarkable aging resistance (less than 3.97 % of permeability decrease over 50 days), outperforming the performance of state-of-the-art polyimide-based blended membranes for He purification. This three-in-one blended membrane construction strategy provides a general toolbox for the development of next-generation, high-performance blended membranes with desirable performance for diverse industrial applications.http://www.sciencedirect.com/science/article/pii/S27728234250001326FDA-TFMBEBPA-TBThree-in-one polyimide-based blended membranesHe/N2 separationPhysical aging resistance |
| spellingShingle | Bingbing Gao Yiran Peng Ming Wu Hua Ma Jianchao Sun Peng Zhang Xingzhong Cao Like Ouyang Xiaobin Fu Chunfang Zhang Yunxiang Bai Lijun Liang Yang Liu Liangliang Dong Three-in-one polyimide-based blended membrane for Upgrading helium separation performance and physical aging resistance Advanced Membranes 6FDA-TFMB EBPA-TB Three-in-one polyimide-based blended membranes He/N2 separation Physical aging resistance |
| title | Three-in-one polyimide-based blended membrane for Upgrading helium separation performance and physical aging resistance |
| title_full | Three-in-one polyimide-based blended membrane for Upgrading helium separation performance and physical aging resistance |
| title_fullStr | Three-in-one polyimide-based blended membrane for Upgrading helium separation performance and physical aging resistance |
| title_full_unstemmed | Three-in-one polyimide-based blended membrane for Upgrading helium separation performance and physical aging resistance |
| title_short | Three-in-one polyimide-based blended membrane for Upgrading helium separation performance and physical aging resistance |
| title_sort | three in one polyimide based blended membrane for upgrading helium separation performance and physical aging resistance |
| topic | 6FDA-TFMB EBPA-TB Three-in-one polyimide-based blended membranes He/N2 separation Physical aging resistance |
| url | http://www.sciencedirect.com/science/article/pii/S2772823425000132 |
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