아크릴산-아크릴로니트릴 공중합체막을 이용한 물-초산 혼합물의 투과증발분리

오부근; 김선정; 이영무

Polymer(Korea), Vol.16, No.1, 85-93, January, 1992

Export Citation

아크릴산-아크릴로니트릴 공중합체막을 이용한 물-초산 혼합물의 투과증발분리

Prevaporation Separation of Water-Acetic Acid Mixture Through Poly(acrylic acid-co-acrylonitrile) Membrane

오부근, 김선정, 이영무

초록

친수성 작용기를 가진 고분자막으로 투과증발분리법을 사용하여 물/아세트산 혼합물의 분리를 시행하였다. 고분자막은 poly(acrylic acid-co-acrylonitrile)[Poly(AA-co-AN)]로 부터 제조하였다. 일반적으로, 카르복시기와 같은 친수성 작용기들은 물/유기물 혼합물의 분리에 있어서 물에 대한 선택성을 증가시킨다. 따라서, 본 연구에서는 기질인 폴리아크릴로니트릴막의 탈수능력을 향상시키기 위해 카르복시기를 함유한 아크릴산을 공증합시켰다. 아크릴산-아크릴로니트릴 공중합체는 emulsifier-free copolymerization법을 사용하여 합성하였다. 공중합체내의 카르복시기함량을 변화시키기 위해 아크릴산의 농도를 변화시키면서 제조하였으며, 고분자막은 용매로 디메틸포름아미드(DMF)를 사용하여 고분자용액을 제조한 후, 유리판에 캐스팅하여 제조하였다. 이들 막을 사용하여 물/아세트산 혼합물의 분리를 시행하였으며. 고분자막의 두께변화, 공급액중 아세트산의 조성변화 그리고 공급액의 온도변화 등이 분리성능에 미치는 영향을 검토하였다.

Dehydration of water/acetic acid mixture by pervaporation was carried out through the membranes prepared from poly(acrylic acid-co-acrylonitrile). Hydrophilic groups such as carboxylic group and sulfonic group generally improve selectivity toward water in separating organic/water mixture. Carboxylic group was introduced in this study to enhance the dehydration ability of the base polyacrylonitrile(PAN) membrane. Poly(acrylic acid-co-acylonitrile) was synthesized by using emulsifier-free polymerization varying acrylic acid concentration to change the contents of carboxylic group in the copolymer. Membrane was prepared by casting 25wt% copolymer solution in dimethylformamide(DMF) onto a glass plate. Using these membranes, dehydration of water/acetic acid mixture was carried out. Effects of membrane thickness, feed concentration of acetic acid and feed temperature on the selectivity and the flux of the membranes were investigated.

[References]

Lee YM, Polym.(Korea), 13(1), 3 (1989)
Streitwieser A, Heathcock CH, "Introduction to Organic Chemistry," 3rd ed., p. 863, Macmillan Publishers (1985)
Huang RYM, Xu Y, Jin Y, Lipski C, Proceedings of the Second International Conference on Pervaporation Processes in the Chemical Industry, San Antonio, USA, 8-11, March 1987, Bakish Materials Corporation, New Jersey, 225-239 (1987)
Huang RYM, Yeom CK, J. Membr. Sci., 58, 33 (1991)
Miyoshi H, boddeker KW, Mattenbach K, Wenzlaff A, Membr. J., 13(2), 109 (1988)
Nguyen TQ, Essamri A, Clememt R, Neel J, Makromol. Chem., 188, 1973 (1987)
Yoshikawa M, Yokoshi T, Sanui K, Ogata N, Membr. J., 10(4), 247 (1985)
Lee YM, Bourgeois D, Belfort G, J. Membr. Sci., 44, 161 (1989)
Ohtsuka Y, Kawaguchi H, Sugi Y, J. Appl. Polym. Sci., 26, 1638 (1981)
Sakota K, Okaya T, J. Appl. Polym. Sci., 20(11), 3133 (1976)
Juang MS, Krieger IM, J. Polym. Sci. A: Polym. Chem., 14, 2089 (1976)
Matsumoto T, Okubo M, Onoe S, Kobunshi Ronbunshu, 33(10), 565 (1976)
Sagota K, Okaya T, J. Appl. Polym. Sci., 20(7), 1725 (1976)
Sakota K, Okaya T, J. Appl. Polym. Sci., 20(7), 1745 (1976)
Goodall AR, Wilkinson MC, Hearn J, J. Polym. Sci. A: Polym. Chem., 15, 2193 (1977)
Kim JH, Kim KY, Polym.(Korea), 11(1), 71 (1987)
Kesting, "Snthetic Polymeric Membranes," 2nd Ed., A Wiley-Interscience Publication, p. 159, New York (1985)
Reichenberg D, Wall W, J. Chem. Soc., 3364 (1956)
Aptel P, Challard N, Cuny J, Neel J, J. Membr. Sci., 1, 271 (1976)
Lee YM, Wang WJ, Makromol. Chem., 191, 3131 (1990)
Spitzen JWF, Ph.D. Thesis, Twente University, Netherlands, 28 (1988)
Spitzen JWF, Koops GH, Mulder MHV, Smolders CA, Proceeding of 3rd International Conference on Pervaporation Process in the Chemical Industry, p. 252, Held in Nancy, France, Sept. 19-22 (1988)
Lee YM, Won G, Polym. J., 22(7), 578 (1990)

[Referenced By]

[1] Lee YM, Polym.(Korea), 13(1), 3 (1989)

[2] Streitwieser A, Heathcock CH, "Introduction to Organic Chemistry," 3rd ed., p. 863, Macmillan Publishers (1985)

[3] Huang RYM, Xu Y, Jin Y, Lipski C, Proceedings of the Second International Conference on Pervaporation Processes in the Chemical Industry, San Antonio, USA, 8-11, March 1987, Bakish Materials Corporation, New Jersey, 225-239 (1987)

[4] Huang RYM, Yeom CK, J. Membr. Sci., 58, 33 (1991)

[5] Miyoshi H, boddeker KW, Mattenbach K, Wenzlaff A, Membr. J., 13(2), 109 (1988)

[6] Nguyen TQ, Essamri A, Clememt R, Neel J, Makromol. Chem., 188, 1973 (1987)

[7] Yoshikawa M, Yokoshi T, Sanui K, Ogata N, Membr. J., 10(4), 247 (1985)

[8] Lee YM, Bourgeois D, Belfort G, J. Membr. Sci., 44, 161 (1989)

[9] Ohtsuka Y, Kawaguchi H, Sugi Y, J. Appl. Polym. Sci., 26, 1638 (1981)

[10] Sakota K, Okaya T, J. Appl. Polym. Sci., 20(11), 3133 (1976)

[11] Juang MS, Krieger IM, J. Polym. Sci. A: Polym. Chem., 14, 2089 (1976)

[12] Matsumoto T, Okubo M, Onoe S, Kobunshi Ronbunshu, 33(10), 565 (1976)

[13] Sagota K, Okaya T, J. Appl. Polym. Sci., 20(7), 1725 (1976)

[14] Sakota K, Okaya T, J. Appl. Polym. Sci., 20(7), 1745 (1976)

[15] Goodall AR, Wilkinson MC, Hearn J, J. Polym. Sci. A: Polym. Chem., 15, 2193 (1977)

[16] Kim JH, Kim KY, Polym.(Korea), 11(1), 71 (1987)

[17] Kesting, "Snthetic Polymeric Membranes," 2nd Ed., A Wiley-Interscience Publication, p. 159, New York (1985)

[18] Reichenberg D, Wall W, J. Chem. Soc., 3364 (1956)

[19] Aptel P, Challard N, Cuny J, Neel J, J. Membr. Sci., 1, 271 (1976)

[20] Lee YM, Wang WJ, Makromol. Chem., 191, 3131 (1990)

[21] Spitzen JWF, Ph.D. Thesis, Twente University, Netherlands, 28 (1988)

[22] Spitzen JWF, Koops GH, Mulder MHV, Smolders CA, Proceeding of 3rd International Conference on Pervaporation Process in the Chemical Industry, p. 252, Held in Nancy, France, Sept. 19-22 (1988)

[23] Lee YM, Won G, Polym. J., 22(7), 578 (1990)