A highly selective polybenzimidazole-4,4-(hexafluoroisopropylidene)bis(benzoic acid) membrane for high-temperature hydrogen separation
- Authors
- Choi, Sun Hee; Kim, Da Hye; Kim, Do Young; Han, Jun Young; Yoon, Chang Won; Ham, Hyung Chul; Kim, Jin-Ho; Kim, Hyoung-Juhn; Nam, Suk Woo; Lim, Tae-Hoon; Han, Jonghee
- Issue Date
- 20-8월-2015
- Publisher
- WILEY
- Keywords
- membranes; properties and characterization; separation techniques
- Citation
- JOURNAL OF APPLIED POLYMER SCIENCE, v.132, no.32
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF APPLIED POLYMER SCIENCE
- Volume
- 132
- Number
- 32
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92737
- DOI
- 10.1002/app.42371
- ISSN
- 0021-8995
- Abstract
- A polymeric gas separation membrane utilizing polybenzimidazole based on 4,4-(hexafluoroisopropylidene)bis(benzoic acid) was prepared. The synthesized membrane has an effective permeating area of 8.3 cm(2) and a thickness of 30 +/- 2 mu m. Gas permeation properties of the membrane were determined using H-2, CO2, CO, and N-2 at temperatures ranging from 24 degrees C to 200 degrees C. The PBI-HFA membranes not only exhibited excellent H-2 permeability, but it also displayed superior gas separation performance particularly for H-2/N-2 and H-2/CO2. The permeation parameters for both permeability and selectivity [PH2 and (H-2/N-2); PH2 and (H-2/CO2)] obtained for the new material were found to be dependent on trans-membrane pressure difference as well as temperature, and were found to surpass those reported by Robeson in 2008. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42371.
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Collections - Graduate School > GREEN SCHOOL (Graduate School of Energy and Environment) > 1. Journal Articles
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