Phase Behavior of Poly(ethylene glycol) in Supercritical CO2, C3H6, and C4H8

Hun-Soo Byun

Journal of Industrial and Engineering Chemistry, Vol.12, No.6, 893-899, November, 2006

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Phase Behavior of Poly(ethylene glycol) in Supercritical CO2, C3H6, and C4H8

Hun-Soo Byun^†

Department of Chemical System Engineering, Chonnam National University, Yeosu, Jeonnam 550-749, Korea

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Cloud-point data for the poly(ethylene glycol) [PEG]-CO2 system were measured in the temperature range from 35 to 195 ℃, to pressures as high as 2360 bar, and with weight-average molecular weights (Mw) of 200, 300, 400, 600, 1000, 2000, and 4000. The phase behavior for the PEG [standard: Mw = 960]-CO2 system was between those of the PEG [Mw = 600]-CO2 and PEG [Mw = 1000]-CO2 mixtures. The phase behavior for the PEG-CO2-diethylene glycol system was measured in terms of the changes of the pressure-temperature slope, and with diethylene glycol concentrations of 0, 5, and 15 wt%. The PEG [Mw = 600 and 1000]-propylene system is analyzed in the temperature range from 113 to 190 ℃ and pressures of up to 2200 bar. The PEG [Mw = 400, 600, 1000, 2000, and 4000]-1-butene systems exhibited the upper critical solution temperature (UCST) region in the temperature range 122∼170 ℃.

Keywords:supercritical CO2;propylene;1-butene;poly(ethylene glycol);diethylene glycol;phase behavior;cloud-point

[References]

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Beckman EJ, J. Supercrit. Fluids, 28, 121 (2004)
Schreiber R, Vogt C, Werther J, Brunner G, J. Supercrit. Fluids, 24, 137 (2002)
Kwak H, Bae SY, J. Ind. Eng. Chem., 12(3), 387 (2006)
Cooper AI, J. Mater. Chem., 10, 207 (2000)
Cao XJ, Hur BK, J. Ind. Eng. Chem., 11(5), 762 (2005)
Gallaugher AF, Hibbert H, J. Am. Soc. Soc., 59, 2514 (1937)
Powell GM, Polyethylene Glycol. In Handbook of Water Soluble Gums and Resins, R. I. Davidson, Ed., Chapter 18, McGraw-Hill Book Company, New York (1980)
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Liu C, Desai KGH, Liu C, J. Chem. Eng. Data, 50, 278 (2005)
Muller EA, Rasmussen P, J. Chem. Eng. Data, 36, 214 (1991)
Zoller P, Walsh DJ, Standard Pressure-Volume-Temperature Data for Polymers, Technomic Pub. Co., Lancaster, PA (1995)
Lee MJ, Tuan YC, Lin HM, J. Chem. Eng. Data, 45, 1100 (2000)
Mohsen-Nia M, Modarress H, Rasa H, J. Chem. Eng. Data, 50, 1662 (2005)
Al-Azzawi SF, Awwad AM, Fluid Phase Equilib., 60, 289 (1990)
Sacco A, Jannelli L, Thermodynamics, 4, 191 (1972)
Karvo M, J. Chem. Thermodyn., 12, 635 (1980)
Chen G, Knapp H, J. Chem. Eng. Data, 40, 1001 (1995)
LoStracco MA, Lee SH, McHugh MA, Polymer, 35(15), 3272 (1994)
Hasch BM, Meilchen MA, Lee SH, McHugh MA, J. Polym. Sci. A: Polym. Chem., 31, 429 (1993)
Kim ST, Liim JY, Choi HJ, Hyun H, J. Ind. Eng. Chem., 12(1), 161 (2006)
Muratov G, Seo KW, Kim C, J. Ind. Eng. Chem., 11(1), 42 (2005)
Byun HS, Lee DH, Ind. Chem. Eng. Res., 45, 3373 (2006)
Byun HS, McHugh MA, Ind. Eng. Chem. Res., 39(12), 4658 (2000)
Reid RC, Prausnitz JM, Polling BE, The Properties of Gases and Liquids, 4th Edn., McGraw-Hill, New York (1987)
Miller KJ, Savchik JA, J. Am. Chem. Soc., 101, 7206 (1979)

[Related Articles]

[1] Kendall JL, Canelas DA, Young JL, DeSimone JM, Chem. Rev., 99(2), 543 (1999)

[2] Beckman EJ, J. Supercrit. Fluids, 28, 121 (2004)

[3] Schreiber R, Vogt C, Werther J, Brunner G, J. Supercrit. Fluids, 24, 137 (2002)

[4] Kwak H, Bae SY, J. Ind. Eng. Chem., 12(3), 387 (2006)

[5] Cooper AI, J. Mater. Chem., 10, 207 (2000)

[6] Cao XJ, Hur BK, J. Ind. Eng. Chem., 11(5), 762 (2005)

[7] Gallaugher AF, Hibbert H, J. Am. Soc. Soc., 59, 2514 (1937)

[8] Powell GM, Polyethylene Glycol. In Handbook of Water Soluble Gums and Resins, R. I. Davidson, Ed., Chapter 18, McGraw-Hill Book Company, New York (1980)

[9] Harris JM, Poly(ethylene glycol) Chemistry, Biothechnical and Biomedical Applications, Plenum Press, New York (1992)

[10] Liu C, Desai KGH, Liu C, J. Chem. Eng. Data, 50, 278 (2005)

[11] Muller EA, Rasmussen P, J. Chem. Eng. Data, 36, 214 (1991)

[12] Zoller P, Walsh DJ, Standard Pressure-Volume-Temperature Data for Polymers, Technomic Pub. Co., Lancaster, PA (1995)

[13] Lee MJ, Tuan YC, Lin HM, J. Chem. Eng. Data, 45, 1100 (2000)

[14] Mohsen-Nia M, Modarress H, Rasa H, J. Chem. Eng. Data, 50, 1662 (2005)

[15] Al-Azzawi SF, Awwad AM, Fluid Phase Equilib., 60, 289 (1990)

[16] Sacco A, Jannelli L, Thermodynamics, 4, 191 (1972)

[17] Karvo M, J. Chem. Thermodyn., 12, 635 (1980)

[18] Chen G, Knapp H, J. Chem. Eng. Data, 40, 1001 (1995)

[19] LoStracco MA, Lee SH, McHugh MA, Polymer, 35(15), 3272 (1994)

[20] Hasch BM, Meilchen MA, Lee SH, McHugh MA, J. Polym. Sci. A: Polym. Chem., 31, 429 (1993)

[21] Kim ST, Liim JY, Choi HJ, Hyun H, J. Ind. Eng. Chem., 12(1), 161 (2006)

[22] Muratov G, Seo KW, Kim C, J. Ind. Eng. Chem., 11(1), 42 (2005)

[23] Byun HS, Lee DH, Ind. Chem. Eng. Res., 45, 3373 (2006)

[24] Byun HS, McHugh MA, Ind. Eng. Chem. Res., 39(12), 4658 (2000)

[25] Reid RC, Prausnitz JM, Polling BE, The Properties of Gases and Liquids, 4th Edn., McGraw-Hill, New York (1987)

[26] Miller KJ, Savchik JA, J. Am. Chem. Soc., 101, 7206 (1979)