배기가스로부터 이산화탄소 분리를 위한 SB 이종 블록공중합체/폴리페닐렌 옥사이드 블렌드 기체분리막

정유선; 김창근; You Sun Jung; Chang Keun Kim

Polymer(Korea), Vol.32, No.6, 593-597, November, 2008

Gas Separation Membranes Prepared from Polystyrene-block-Polybutadiene/Poly(phenylene oxide) Blends for Carbon Dioxide Separation from a Flue Gas

정유선, 김창근 ^†

중앙대학교 화학신소재공학부

You Sun Jung, and Chang Keun Kim^†

School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Heuksuk-dong, Dongjak-Gu, Seoul 156-756, Korea

E-mail:

초록

배기가스에 포함된 이산화탄소를 분리하기 위해 polystyrene-block-polybutadiene(SB) 이종 블록 공 중합체와 폴리페닐렌 옥사이드(PPO) 블렌드로부터 기체 분리막을 제조하였다. SB/PPO 블렌드에서 폴리스티렌 블록과 PPO는 실험 범위내에서 단상의 블렌드를 형성하였다. SB/PPO 블렌드에서 PPO 함량이 증가하여 40∼50wt% 범위에서 폴리부타디엔 블록은 연속상에서 불연속상으로 폴리스티렌 블록과 PPO로 구성된 상은 불연속상에서 연속상으로 전이가 나타났다. 전이가 관찰되는 블렌드 조성에서 급격한 기체 투과도 감소와 선택도 증가가 관찰되었다. 또 블렌드가 50 wt% 이상의 PPO를 포함할 경우 기계적 강도가 확보되어 실험한 최대 압력인 약 10기압까지 변형없이 우수한 투과도와 선택도를 갖는 기체 분리막 제조가 가능하였다.

To separate carbon dioxide from a flue gas, membranes for gas separation was fabricated from polystyrene-b-polybutadiene (SB) diblock copolymer blends with poly(phenylene oxide), PPO. SB diblock copolymer formed miscible blends with PPO in the experimental range (lower than or equal to 70 wt% PPO). When the blend contained PPO whose composition is in the range of 40-50 wt%, the discontinuous phase of polybutadiene block in SB diblock copolymer, was changed to discrete phase, while polystyrene blocks containing PPO was changed to the continuous phase. A sudden decrease of the gas permeability and a sudden increase of the gas selectivity was observed at these blend compositions. A gas separation membranes having excellent mechanical properties and exhibiting advantages in gas permeability and selectivity could be fabricated from blends containing more than 50 wt% PPO.

Keywords:polystyrene-block-polybutadiene;poly(phenylene oxide);blend;gas separation membrane;carbon dioxide separation

[References]

Herzog H, Environ. Sci. Technol., 35, 148 (2001)
White CM, J. Air Waste Manage. Assoc., 53, 645 (2003)
Davidson O, Metz B, “Special Report on Carbon Dioxide Capture and Storage”, in International Panel on Climate Change, Geneva, Switzerland, 2005
Davison J, Thambimuthu K, “Technologies for Capture of Carbon Dioxide”, in Proceedings of the Seventh Greenouse Gas Technology Conference, Vancouver, Canada, International Energy Association (IEA), Greenhouse Gas R&D Progamme, 2004
Aaron D, Tsouris C, Sep. Sci. Technol., 40(1-3), 321 (2005)
Favre E, J. Membr. Sci., 294(1-2), 50 (2007)
Kaldis SP, Skodras G, Sakellaropoulos GP, Fuel Process. Technol., 85(5), 337 (2004)
Paul DR, Yampolskii YP, Polymeric gas separation membranes, Paul DR, Yampolskii YP, Editors, CRC Press, Inc., Boca Raton, USA, Chap. 1 and 2 (2000)
Robeson LM, J. Membrane Sci., 62, 165 (1991)
Robeson LM, J. Membrane Sci., 320, 390 (2008)
Koros WJ, Paul DR, J. Polym. Sci. Part B, 14, 675 (1976)
Mulder M, Basic Principles of Membrane Technology, Kluwer Academic Pub., Dordrecht, Netherlands, Chapter 7 (1996)
Kinning D, Winey K, Thomas E, Macromolecules, 21, 3502 (1983)
Cheng P, Berney C, Cohen R, Macromolecules, 21, 3442 (1988)
Hwang JM, Lee KH, Lee DC, Polym.(Korea), 21(5), 745 (1997)
Morel G, Paul DR, J. Membrane Sci., 10, 273 (1982)
Moon Y, Kim CK, Polym.(Korea), 23(5), 690 (1999)

[Related Articles]

[1] Herzog H, Environ. Sci. Technol., 35, 148 (2001)

[2] White CM, J. Air Waste Manage. Assoc., 53, 645 (2003)

[3] Davidson O, Metz B, “Special Report on Carbon Dioxide Capture and Storage”, in International Panel on Climate Change, Geneva, Switzerland, 2005

[4] Davison J, Thambimuthu K, “Technologies for Capture of Carbon Dioxide”, in Proceedings of the Seventh Greenouse Gas Technology Conference, Vancouver, Canada, International Energy Association (IEA), Greenhouse Gas R&D Progamme, 2004

[5] Aaron D, Tsouris C, Sep. Sci. Technol., 40(1-3), 321 (2005)

[6] Favre E, J. Membr. Sci., 294(1-2), 50 (2007)

[7] Kaldis SP, Skodras G, Sakellaropoulos GP, Fuel Process. Technol., 85(5), 337 (2004)

[8] Paul DR, Yampolskii YP, Polymeric gas separation membranes, Paul DR, Yampolskii YP, Editors, CRC Press, Inc., Boca Raton, USA, Chap. 1 and 2 (2000)

[9] Robeson LM, J. Membrane Sci., 62, 165 (1991)

[10] Robeson LM, J. Membrane Sci., 320, 390 (2008)

[11] Koros WJ, Paul DR, J. Polym. Sci. Part B, 14, 675 (1976)

[12] Mulder M, Basic Principles of Membrane Technology, Kluwer Academic Pub., Dordrecht, Netherlands, Chapter 7 (1996)

[13] Kinning D, Winey K, Thomas E, Macromolecules, 21, 3502 (1983)

[14] Cheng P, Berney C, Cohen R, Macromolecules, 21, 3442 (1988)

[15] Hwang JM, Lee KH, Lee DC, Polym.(Korea), 21(5), 745 (1997)

[16] Morel G, Paul DR, J. Membrane Sci., 10, 273 (1982)

[17] Moon Y, Kim CK, Polym.(Korea), 23(5), 690 (1999)