Surface modification of commercial composite polyamide reverse osmosis membranes

S. Belfer, Y. Purinson, R. Fainshtein, Y. Radchenko, O. Kedem

Research output: Contribution to journalArticlepeer-review

167 Scopus citations

Abstract

Radical grafting of two monomers, methacrylic acid and polyethylene glycolmethacrylate, onto commercial composite polyamide reverse osmosis membranes was performed. A redox system was used for initiation, and grafting was performed in an aqueous medium at room temperature. Surface grafting was characterized by ATR-FTIR, ESCA and streaming potential measurements. It was found that the membranes were surface modified without damage to their transport properties.

Original languageEnglish
Pages (from-to)175-181
Number of pages7
JournalJournal of Membrane Science
Volume139
Issue number2
DOIs
StatePublished - 18 Feb 1998

Keywords

  • Grafting
  • Polyamide composite membrane
  • RO membrane
  • Redox initiation
  • Surface modification

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