Use of Poly(methyl methacrylate-co-methacrylic acid) Membranes in the Ultrafiltration of Aqueous Fe3+Solutions by Complexing with Poly(vinyl pyrrolidone) and Dextran

Asman G.

SEPARATION SCIENCE AND TECHNOLOGY, vol.44, no.5, pp.1164-1180, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 5
  • Publication Date: 2009
  • Doi Number: 10.1080/01496390902729148
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1164-1180
  • Gazi University Affiliated: Yes


In this study water soluble complexible polymers, poly(vinyl pyrrolidone) (PVP) and dextran, were used for the ultrafiltration (UF) of aqueous Fe+3 solutions by using poly(methyl methacrylate-co-methacrylic acid) (PMMA-co-MA) membranes. Effects of polymer concentration and pH on the volume collected in the filtration of Fe+3 solutions and percent retentions (R%) were examined. It was determined that increase in polymer concentration decreased the permeability of PMMA-co-MA membrane and pH increased the retention of Fe3+ solutions. R% for Fe3+ solutions were obtained as 62% and 48% with PVP and dextran respectively at pH 3.0, for a filtration period of 80 minutes and retention for Fe3+ solution without using any complex forming polymer was found as 14%. Membranes were characterized by AFM analysis and contact angle measurements.