Advances in membrane materials: desalination membranes based on directly copolymerized disulfonated poly(arylene ether sulfone) random copolymers

Wei Xie, Ho Bum Park, Joseph Cook, Chang Hyun Lee, Gwangsu Byun, Benny D. Freeman, James E. McGrath

Research output: Contribution to journalArticleResearchpeer-review

34 Citations (Scopus)

Abstract

The water and salt transport properties of chlorine tolerant disulfonated poly(arylene ether sulfone) (BPS) copolymers have been characterized. Cast BPS membranes of both salt form and acid form with sulfonation levels from 20% to 40% were investigated. Water permeability of BPS films increases more than one order of magnitude as sulfonation level increases from 20% to 40%, while the salt permeability of the corresponding membranes increases two orders of magnitude. Moderate salt rejection (98.2%) was achieved by a BPS salt form membrane with a sulfonation level of 20%.

Original languageEnglish
Pages (from-to)619-624
Number of pages6
JournalWater Science and Technology
Volume61
Issue number3
DOIs
Publication statusPublished - 2010
Externally publishedYes

Keywords

  • Desalination membranes
  • Disulfonated poly(arylene ether sulfone) copolymers
  • Reverse osmosis
  • Selectivity
  • Trade-off

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