Gas Separation Properties of 6FDA-Based Polyimide Membranes with a Polar Group

  • Park, Sang-Hee (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Kim, Kwang-Je (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • So, Won-Wook (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Moon, Sang-Jin (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Lee, Soo-Bok (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology)
  • 발행 : 2003.06.01

초록

6FDA-based polyimides were prepared from the thermal imidization reaction of 6FDA with diamines of BAPAF, DAP, and DABA having a polar group of hydroxyL or carboxyl. Properties of the dense polyimide membranes were characterized and their gas permeation properties for H$_2$, $CO_2$, $O_2$, $N_2$, and CH$_4$ were investigated. Permeabilities, diffusion coefficients and diffusivity selectivities of polar group-containing polyimide membranes including 6FDA-BAPAF, 6FDA-DAP, and 6FDA-DABA polymer for the gases did not change largely. The separation properties of 6FDA-TrMPD polyimide membrane used as a reference polymer were compared with those of the polyimide membranes mentioned above. It was found that the polyimides of 6FDA-BAPAF, 6FDA-DAP, and 6FDA-DABA, which were soluble in alcohol or/and 2-methoxyethanol, could be applicable to the preparation of a dense composite membrane by dip-coating method.

키워드

참고문헌

  1. Membrane Technology and Applications R. W. Baker
  2. Macromol. Res. v.10 J. H. Kim;J. E. Yoo;C. K. Kim
  3. Macromol. Res. v.10 H. C. Kang;Y. H. Bae
  4. J. Membr. Sci. v.37 T. H. Kim;W. J. Koros;G. R. Husk;k. C. OBrien
  5. J. Appl. Polym. Sci. v.27 S. A. Stern;Y. MI;H. Yamamoto
  6. J. Membr. Sci. v.50 M. R. Coleman;W. J. Koros
  7. J. Polym. Sci. Polym. Phys. v.28 H. Yamamoto;Y. MI;S. A. Stern
  8. J. Polym. Sci. Polym. Phys. v.30 K. Tanaka;M. Okano;H. Toshino;H. Kita;K. I. Okamoto
  9. J. Appl. Polym. Sci. v.47 K. Matsumoto;R. Xu
  10. J. Polym. Sci. Polym. Phys. v.32 B. W. Chun;C. Ishizu;H. Itatani;K. Haraya;Y. Shindo
  11. J. Polym. Sci. Polym. Phys. v.33 K. Tanaka;Y. Osada;H. Kita;K. I. Okamoto
  12. J. Membr. Sci. v.103 L. S. White;T. A. Blinka;H. A. Kloczewski;I-fan Wang
  13. J. Membr. Sci. v.155 C. Staudt-Bikel;W. J. Koros
  14. J. Polym. Sci. Polym. Phys. v.37 C. M. Zimmerman;W. J. Koros
  15. J. Membr. Sci. v.163 M. Mikawa;S. Nagalka;H. Kawakami
  16. J. Membr. Sci. v.211 K. J. Kim;S. H. Park;W. W. So;D. J. Ahn;S. J. Moon
  17. Physical Properties of Molecular Crystals Liquids and Gases A. Bondi
  18. Properties of Polymer D. W. van Krevelen
  19. J. Membr. Sci. v.141 S. Matsui;H. Stato;T. Nakagawa