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
- 2015-08-20
- Publisher
- WILEY
- Citation
- JOURNAL OF APPLIED POLYMER SCIENCE, v.132, no.32
- 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.
- Keywords
- GAS-TRANSPORT PROPERTIES; HOLLOW-FIBER MEMBRANES; MOLECULAR-WEIGHT; POLYBENZIMIDAZOLE; POLYCARBONATES; PERMEABILITY; ENHANCEMENT; GAS-TRANSPORT PROPERTIES; HOLLOW-FIBER MEMBRANES; MOLECULAR-WEIGHT; POLYBENZIMIDAZOLE; POLYCARBONATES; PERMEABILITY; ENHANCEMENT; membranes; properties and characterization; separation techniques
- ISSN
- 0021-8995
- URI
- https://pubs.kist.re.kr/handle/201004/125115
- DOI
- 10.1002/app.42371
- Appears in Collections:
- KIST Article > 2015
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.