Preparation of Water-swollen Hydrogel Membranes for the Separation of Carbon Dioxide

You-In Park; Kew-Ho Lee

Journal of Industrial and Engineering Chemistry, Vol.5, No.3, 235-239, September, 1999

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Preparation of Water-swollen Hydrogel Membranes for the Separation of Carbon Dioxide

You-In Park , and Kew-Ho Lee^†

Membrane and Separtion Research Center, Korea Research Institute Chemical Technology, Taejon 305-606, Korea

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Water-swollen hydrogel (WSH) membranes for the separation of carbon dioxide were prepared by dip-coating asymmetric porous polyetherimide (PEI) supporters with poly(viniyl alcohol) (PVA)-polyI(acrylic acid) (PAA), followed by the thermal crosslinking of the PVA/PAA layer. The PVA/PAA layers with different blend compositions (PVA/PAA = 90/10, 80/20, 70/30 in wt %) were characterized with differential scanning calorimetry (DSC), infrared spectroscopy (IR) and the determination of their water swelling ratio. The permeabilities and the separation factors of carbon dioxide through these membranes were measured with a vacuum mode of downstream using a mass flow meter and gas chromatograph at different temperatures. When the feed composition of CO₂/N₂ mixture was 20/80 2 ranged from 10^-5 to 10^-6 (cm³/cm²·sec·cmHg). These membranes were stable at least up to 12 h.

Keywords:water-swollen hydrogel membrane;dip-coating;carbon dioxide;permeability;selectivity

[References]

Ito Y, Kobunshi Kagaku, 18, 158 (1961)
Kamiya Y, Takahashi F, J. Appl. Polym. Sci., 21, 1945 (1977)
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Zhang WZ, Satoh M, Komiyama J, J. Membr. Sci., 40, 343 (1989)
Okabe K, Matsuzaki Y, Sumiyama Y, Hrayama Y, Kazama S, Takage K, Mano H, Haraya K, Kamizawa C, Proceedings of the 3rd Korea-Japan Symposium on Separation Technology, 435 (1993)
Rhim JW, Sohn MY, Joo HJ, Lee KH, J. Appl. Polym. Sci., 50, 679 (1993)

[Referenced By]

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[1] Ito Y, Kobunshi Kagaku, 18, 158 (1961)

[2] Kamiya Y, Takahashi F, J. Appl. Polym. Sci., 21, 1945 (1977)

[3] Yasuda H, Stone W, J. Appl. Polym. Sci., 4, 1314 (1966)

[4] Yasuda H, Lamaze CE, J. Macromol. Sci.-Phys., B5, 111 (1971)

[5] Renkin EM, J. Gen. Physiol., 38, 225 (1954)

[6] Higuchi A, Abe M, Komiyama J, Iijima T, J. Membr. Sci., 21, 113 (1984)

[7] Higuchi A, Fushimi H, Iijima T, J. Membr. Sci., 25, 171 (1985)

[8] Zhang WZ, Satoh M, Komiyama J, J. Membr. Sci., 31, 147 (1987)

[9] Zhang WZ, Satoh M, Komiyama J, J. Membr. Sci., 40, 343 (1989)

[10] Okabe K, Matsuzaki Y, Sumiyama Y, Hrayama Y, Kazama S, Takage K, Mano H, Haraya K, Kamizawa C, Proceedings of the 3rd Korea-Japan Symposium on Separation Technology, 435 (1993)

[11] Rhim JW, Sohn MY, Joo HJ, Lee KH, J. Appl. Polym. Sci., 50, 679 (1993)