Fundamental salt and water transport properties in directly copolymerized disulfonated poly(arylene ether sulfone) random copolymers
- Title
- Fundamental salt and water transport properties in directly copolymerized disulfonated poly(arylene ether sulfone) random copolymers
- Author
- 박호범
- Keywords
- Disulfonated polysulfone; Transport properties; Desalination
- Issue Date
- 2011-05
- Publisher
- ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
- Citation
- In Polymer 2011, 52(9),2032-2043
- Abstract
- Water and sodium chloride solubility, diffusivity and permeability in disulfonated poly(arylene ether sulfone) (BPS) copolymers were measured for both acid and salt form samples at sulfonation levels from 20 to 40 mol percent. The hydrophilicity of these materials, based on water uptake, increased significantly as sulfonation level increased. The water permeability of BPS materials in both the salt and acid forms increases more than one order of magnitude as sulfonation level increases from 20% to 40%, while NaCl permeability increases by two orders of magnitude. The water and salt diffusivity and permeability were correlated with water uptake, consistent with expectations from free volume theory. In addition, a tradeoff was observed between water/salt solubility, diffusivity, and permeability selectivity and water solubility, diffusivity and permeability, respectively. This finding suggests a water/salt permeability/selectivity tradeoff, similar to that operative in gas separation polymers, in this family of polymers.
- URI
- http://www.sciencedirect.com/science/article/pii/S0032386111001030?via%3Dihub
- ISSN
- 0032-3861
- DOI
- 10.1016/j.polymer.2011.02.006
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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