Ultrafiltration membranes from PVDF/PMMA blends

Suzana Nunes, Klaus-Victor Georg Peinemann*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

170 Scopus citations

Abstract

Asymmetric membranes for ultrafiltration were obtained from PVDF/PMMA blends. Addition of 1% PMMA to the casting solution increases the water permeability 14-fold without loss of retention. Pore size distribution, evaluated by a modified bubble point test, showed a large increase in number of pores with size between 10 and 30 nm. The addition of PMMA also increases the size of finger-like cavities as shown by scanning electron microscopy.

Original languageEnglish (US)
Pages (from-to)25-35
Number of pages11
JournalJournal of Membrane Science
Volume73
Issue number1
DOIs
StatePublished - Oct 2 1992

Keywords

  • membrane preparation and structure
  • microporous and porous membranes
  • polymer blends
  • ultrafiltration

ASJC Scopus subject areas

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

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