by Shanshan Ji, Teng Wang, Lu Guan, Chengyang Zhao, Shuai Quan, Xuewei Dong, Xianzhi Zhang, Fandi Meng, Zhicheng Tian Polymer membranes offer an extremely attractive solution for achieving sustainable carbon dioxide capture and have the potential for large-scale application. The authors prepared almost amorphous polyethylene oxide separation membranes through cross-linking methods, with a CO 2 /H 2 separation coefficient of 7.9.
However, there is still the drawback of low CO 2 permeability. To improve the performance of the cross-linked membranes, this paper utilized the swelling property of the cross-linked membranes and immersed them with different end groups of PEG aqueous solutions.
The effects of different end groups on the gas separation performance of the cross-linked membranes were investigated. The results showed that after being impregnated with different end group PEG, the gas permeabilities of the cross-linked membranes increased.
When using a polyethylene glycol with a molecular weight of 250 g/mol for impregnation, a 47.0wt.% increase in weight was observed, and the gas permeability and CO 2 /H 2 separation coefficient of the cross-linked membranes increased significantly.
PLOS ONE (Medicine) published a clinical update in Research Highlights on 10 Apr 2026.
The item focuses on Effect of impregnation with polyethylene glycols (PEGs) of different end groups on gas separation performance of cross-linked polyethylene oxide (PEO) membranes.
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