Separation of organic solvent from dilute aqueous solutions and from organic solvent mixtures through crosslinked acrylate copolymer membranes by pervaporation

Masaru Hoshi, Mamoru Kobayashi, Takanori Saitoh, Akon Higuchi, Tsutomu Nakagawa

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24 Scopus citations

Abstract

The composite membranes of acrylate polymers and porous substrate were prepared. The separation of the organic solvent-water mixtures and the organic solvent-organic solvent mixtures through these membranes by pervaporation was inves-tigated. The acrylate copolymer membrane showed the organic solvent permselectivity for the separation of the organic solvent-water mixture, especially for the chlorinated hydrocarbon-water mixture separation. The high organic solvent permselectivity should be governed by solubility selectivity. The influence of the ester residue of acrylate on the phenol-water mixture separation was observed. The copolymerization of the macromonomers containing the polystyrene, poly(methyl methacrylate), and polydimethylsiloxane chain had a small effect on the separation of the chlorinated hydrocarbon-water mixture. High flux and low selectivity of organic solvent were observed in the case of the organic solvent mixture separation through the n-butylacrylate membrane. The difference of permeability of organic solvent was observed for the acrylate copolymer which has various structures of ester residue.

Original languageEnglish
Pages (from-to)1483-1494
Number of pages12
JournalJournal of Applied Polymer Science
Volume69
Issue number8
DOIs
StatePublished - 22 Aug 1998

Keywords

  • Acrylate copolymer
  • Organic solvent mixture
  • Pervaporation

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