Facilitated Transport of Oxygen in Poly(dimethylsiloxane-co-styrene-co-4-vinyl pyridine)Terpolymer Membrane Containing Cobalt Schiff Base Carrier

Jae-Min Hong; Sang Wook Lee

Journal of Industrial and Engineering Chemistry, Vol.3, No.3, 165-170, September, 1997

Jae-Min Hong , and Sang Wook Lee¹

Division of Polymer Science and Engineering, Korea Institute of Science and Technology, Seoul 130-650, Korea
¹Dept. of Macromolecular Sci., Case Western Rserve Univ., U.S.A., USA

A facilitated transport membrane was prepared by incorporating a cobalt Schiff base, Co(salen), as an oxygen carrier into a terpolymer membrane of poly(dimethylsiloxane-co-styrene-co-4-vinyl pyridine) A reversible oxygen binding of the carrier was investigated with UV-visible spectroscopy. The terpolymer membrane with carrier showed that the permeability of oxygen was increased from 275 to 405 barrer due to a facilitation action of Co(salen) carriers. Upon incorporating Co(salen) into the membrane, the free volume is expected to be increased due to the bulkiness of Co(salen). The increased free volume resulted in the enhanced permeabilities of both oxygen and nitrogen. Therefore, the oxygen selectivity over nitrogen through the terpolymer membrane with Co(salen) was only marginally increased. The effects of the temperature and carrier concentration on the diffusivity and solubility were also investigated.

[References]

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Sterzel HJ, Sanner A, U.S. Patent, 4,973,606 (1990)
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Barklew CH, Calvin M, J. Am. Chem. Soc., 68, 2257 (1946)
Crank J, "The Mathmatics of Diffusion," 2nd ed., Oxford University Press (1975)
Kang YS, Hong JM, Jang J, Kim UY, J. Membr. Sci., to submitted
Homg JM, Kang YS, Jang J, Kim UY, J. Membr. Sci., to submitted

[Referenced By]

[Related Articles]

[1] Koros WJ, Fleming GK, Jordan SM, Kim TH, Hoehn HH, Prog. Polym. Sci., 13, 339 (1988)

[2] Roman IC, Baker RW, U.S. Patent, 4,542,010 (1985)

[3] Sterzel HJ, Sanner A, U.S. Patent, 4,973,606 (1990)

[4] Woehrle D, Bohlen H, Aringer C, Pohl D, Makromol. Chem., 185, 669 (1984)

[5] Shim JS, Kim UY, Kang YS, Kim BG, Hong JM, J. Korean Ind. Eng. Chem., 1(2), 140 (1990)

[6] Nishide H, Ohyanagi M, Okada O, Tsuchida E, Macromolecules, 19, 494 (1986)

[7] Nishide H, Ohyanagi M, Okada O, Tsuchida E, Macromolecules, 20, 417 (1987)

[8] Delaney MS, Reddy D, Wessling RA, J. Membr. Sci., 49, 15 (1990)

[9] Bailes RH, Calvin M, J. Am. Chem. Soc., 69, 1886 (1947)

[10] Barklew CH, Calvin M, J. Am. Chem. Soc., 68, 2257 (1946)

[11] Crank J, "The Mathmatics of Diffusion," 2nd ed., Oxford University Press (1975)

[12] Kang YS, Hong JM, Jang J, Kim UY, J. Membr. Sci., to submitted

[13] Homg JM, Kang YS, Jang J, Kim UY, J. Membr. Sci., to submitted