Pervaporation of aqueous ethanol solution through poly(amidesulfonamide)s (PASAs) membranes

Wing Hong CHAN*, Ching Fai Ng, Suei Yee Lam-Leung, Xumin He

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

14 Citations (Scopus)


Symmetric non-porous membranes derived from five poly(amidesulfonamide)s were prepared for the separation of ethanol-water mixtures by the use of the pervaporation technique. It was found that water preferentially permeated through all PASA membranes in all ranges of feed compositions. The relationship between the polymer structure and its pervaporation performance will be discussed. The dependence of permeation rate on the feed composition was explained by the 'carrier-mediated' mechanism. The effect of temperature on the pervaporation characteristics of the materials was investigated in details. Experimental results revealed that the polymer based on the diamino monomer containing the piperazine moiety and isophthaloyl chloride emerged as the best system in terms of separation factor and permeation rate in the dehydration of ethanol.

Original languageEnglish
Pages (from-to)2461-2467
Number of pages7
Issue number12
Publication statusPublished - Jun 1998

Scopus Subject Areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

User-Defined Keywords

  • Dehydration of ethanol
  • Pervaporation
  • Poly(amidesulfonainide)s


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