Thermally rearranged (TR) polybenzoxazole hollow fiber membranes for CO2 capture
- Title
- Thermally rearranged (TR) polybenzoxazole hollow fiber membranes for CO2 capture
- Author
- 이영무
- Keywords
- Thermally rearranged (TR) polymer; Polybenzoxazole; Hollow fiber membrane; CO2 separation
- Issue Date
- 2012-06
- Publisher
- Elsevier Science B.V
- Citation
- Journal of Membrane Science, 2012, 403, P.169-178
- Abstract
- Thermally rearranged polybenzoxazole (TR-PBO) hollow fiber membranes were prepared using a nonsolvent induced phase separation method intended to apply for CO2 separation from post-combustion flue gas. Asymmetric hollow fiber membranes were spun from a hydroxyl poly(amic acid) (HPAAc) precursor and subsequently converted to TR-PBO hollow fiber membranes after thermal treatment above 400 degrees C. The skin structure and porous substructure in TR-PBO hollow fiber membranes were maintained even after thermal treatment at above glass transition temperature (T-g) of precursor polymers. To fabricate defect-free hollow fiber membranes, the effects of dope composition and thermal rearrangement conditions were investigated. Gas permeation properties of TR-PBO hollow fiber membranes measured by constant pressure method with small laboratory scale test module revealed a high CO2 permeance (1940 GPU) with a CO2/N-2 selectivity of 13. (C) 2012 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0376738812001573?via%3Dihubhttp://hdl.handle.net/20.500.11754/67987
- ISSN
- 0376-7388
- DOI
- 10.1016/j.memsci.2012.02.041
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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