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

한국막학회 (The Membrane Society of Korea)
권호 표지

SOLUTION CHARACTERISTICS AND MEMBRANE FORMATION OF PARTIALLY IMIDIZED POLY (AMIC ACID)

  • Lee, Hyuck-Jai (Polymer Physics Laboratory, Korea Institute of Science and Technology(KIST)/ Department of Chemistry, Sogang University) ;
  • Won, Jong-Ok (Polymer Physics Laboratory, Korea Institute of Science and Technology(KIST)) ;
  • Park, Hyun-Chae (Polymer Physics Laboratory, Korea Institute of Science and Technology(KIST)) ;
  • Lee, Hoo-Sung (Department of Chemistry, Sogang University) ;
  • Kang, Yong-Soo (Polymer Physics Laboratory, Korea Institute of Science and Technology(KIST))
  • 발행 : 1999.07.01
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초록

The imidization effect of a poly (amic acid) dope solution on membrane formation has been investigated. Poly (amic acid) solution in S-methyl-2-pyrrolidione hs been thermally imidized at $120^{\circ}C$ with different curing time and its degree of imidization was determined by infrared spectroscopy. The solution properties have been studied as a function of concentration and curing time by dynamic light scattering. The quality of a solvent was changed from good to poor with increasing imidization of poly(amic acid).The reduced polymer-solvent interaction diminishes the membrane formation time. The morphology of a membrane was able to be controlled by the characteristics of dope solution.

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