PREPARATION OF FLUOROALKYL ACRYLATE-METHYLSTYRENE RANDOM AND GRAFT COPOLYMER MEMBRANES AND THEIR PERMSELECTIVITY FOR WATER-ETHANOL MIXTURE.

Hideki Toyo, Masaaki Ohgizawa, Hiroyuki Nishide

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6 Citations (Scopus)

Abstract

Membranes of random and graft copolymers of fluoroalkyl acrylate (FAA) and methylstyrene (MSt) were prepared. Permselectivity for water-ethanol mixtures was studied by pervaporation. Pervaporation rate of the random copolymer membranes were correlated with their glass transition temperatures. Permselectivity for water was governed by diffusivity through the membrane, as shown by the effects of temperature and size of the penetrants on the pervaporation rate. On the other hand, ethanol was efficiently permeated for the graft copolymer membrane because of its water-repellent property of FAA. Effects of the structures of the copolymer membranes on the separation for water-ethanol mixtures were discussed.

Original languageEnglish
Pages (from-to)559-563
Number of pages5
JournalKobunshi Ronbunshu
Volume43
Issue number9
Publication statusPublished - 1986

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ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Science(all)
  • Materials Science (miscellaneous)
  • Ceramics and Composites
  • Polymers and Plastics

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