Proceedings of the Membrane Society of Korea Conference (한국막학회:학술대회논문집)

The Membrane Society of Korea (한국막학회)
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SYNTHESIS AND CHARACTERIZATION OF THE POLYCATIONS FOR THE PREPAEATION OF POLYION COMPLEX MEMBRANS

  • Jegal, J.G. (Advanced Polymer Division, Korea Research institute of Chemical Technology, Daedeog-Danji, P.O. Box 9, Taejon) ;
  • park, Y.I. (Advanced Polymer Division, Korea Research institute of Chemical Technology, Daedeog-Danji, P.O. Box 9, Taejon) ;
  • Kim, J.H. (Advanced Polymer Division, Korea Research institute of Chemical Technology, Daedeog-Danji, P.O. Box 9, Taejon) ;
  • Lee, K.H. (Advanced Polymer Division, Korea Research institute of Chemical Technology, Daedeog-Danji, P.O. Box 9, Taejon)
  • Published : 1993.10.01
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Abstract

Pervaporation has become important as a method to separate liquid mixtures, sepecially azeotropic and close boiling-point mixtures. Especially, water-alcohol separations have been carried out a lot because of the practical interests in the industries. However, outstanding membranes with high selectivity and high permeability have not been available in common use yet. In order to separate selectively out the water mixed with alcohols with an aim of the purification of the alcohols, a membrane has tO have excellent affinity to water. Among the hydrophilic polymers, polyacrylic acid and poly(vinyl alcohol) are used widely. In recent years, ionomers and polyion complexes, better hydrophitic materials, start to be used. The polyion complex membranes, consisting of polyacrylic acid (PAA) and polycation, showed excellent permeation rates and selectivities. It was known that among the polycations, ioneries, which have quaternary ammonium groups in the backbone chain, were more effective in giving membranes of higher permselectivities. On this base, syntheses and characterizations of the polycations, with different chemical structures from the published ones, for the polyion complex membrane formation were studied in this paper.

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