Articles & Issues
- Language
- korean
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received June 20, 2005
Accepted August 26, 2005
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Poly(4-vinylphenol)/Ketone 용액계의 상평형
Phase Equilibria of the Poly(4-vinylphenol)/Ketone Solutions
강원대학교 화학공학과, 200-701 강원도 춘천시 효자2동 192-1
Department of Chemical Engineering, Kangwon National University, 192-1, Hyoja-2 dong, Chunchon 200-701, Korea
kichang@kangwon.ac.kr
Korean Chemical Engineering Research, October 2005, 43(5), 579-587(9), NONE Epub 2 November 2005
Download PDF
Abstract
본 연구에서는 Poly(4-vinylphenol)(PVPh)/acetone 및 PVPh/methyl ethyl ketone 용액계의 액-액 상분리 실험을 TOA(thermal optical analysis)방법으로 실행하였다. 실험을 수행한 PVPh/acetone 및 PVPh/MEK 용액계의 상분리 거동은 두 용액 계 모두 LCST 형태의 거동을 보였고 상분리 온도는 고분자의 분자량이 증가함에 따라 낮아지는 경향을 보였다. 또한, 용매의 분자량이 상분리에 미치는 영향으로는 용매의 분자량이 큰 PVPh/MEK 용액의 상분리 온도가 PVPh/acetone 용액의 경우보다 높은 온도 영역에 분포하는 경향을 보였다. 실험에서 측정된 상분리 데이터를 PVPh와 ketone 분자간의 교차회합과 PVPh의 자기회합을 고려한 PC-SAFT 상태방정식 관계를 이용하여 액-액 상평형 관점에 서 검토하여 보았다. PVPh의 PC-SAFT 상태방정식 파라미터와 교차회합 파라미터는 PVPh의 용융상태의 밀도 데이터와 PVPh/acetone 용액의 기-액 평형 데이터를 동시에 고려하여 추산하였다. 추산된 파라미터를 이용하여 각 고분자 용액계의 spinodal curve와 binodal curve를 계산하였으며, 계산된 binodal curve는 실험에서 측정된 상분리 온도와 일치하는 경향을 보였다.
Phase separations of Poly(4-vinylphenol)(PVPh)/acetone and PVPh/methyl ethyl ketone solutions were measured using the thermal optical analysis (TOA) method. The phase separations of these system showed the behaviors of LCST-type (lower critical solution temperature). The measured cloud temperatures were lowered with increasing molecular weight of PVPh, and cloud temperatures of PVPh/MEK solutions shifted to higher temperature regions, compared to the PVPh/acetone solutions. Phase equilibria of PVPh/ketone solutions were described with taking account of self-associations of PVPh and cross-associations between PVPh and solvent, by using the PC-SAFT equation of state. PC-SAFT EoS parameters of PVPh and cross-association parameters were determined by simultaneously fitting liquid density data of PVPh and VLE data of the PVPh/acetone system. The estimated parameters of PVPh and cross-association parameters were utilized to calculations of the binodal and spinodal curves, and the calculated binodal curves were in good agreements with the experimental cloud temperatures.
References
Wei YS, Sadus RJ, AIChE J., 46(1), 169 (2000)
Sanchez IC, Lacombe RH, J. Phys. Chem., 80(21), 2352 (1976)
Lacombe RH, Sanchez IC, J. Phys. Chem., 80(23), 2568 (1976)
Kumar SK, Suter UW, Reid RC, Ind. Eng. Chem. Res., 26(12), 2532 (1987)
Yoo KP, Shin MS, Yoo SJ, You SS, Lee CS, "A New Equation of State based on Nonrandom Two-Fluid Lattice Theory for Complex Mixtures", Fluid Phase Equilibria, 111, 175, 111, 175 (1995)
Song YH, Lambert SM, Prausnitz JM, Ind. Eng. Chem. Res., 33(4), 1047 (1994)
Chiew Y, Mol. Phys., 70(1), 129 (1990)
Song YH, Lambert SM, Prausnitz JM, Macromolecules, 27(2), 441 (1994)
Huang SH, Radosz M, Ind. Eng. Chem. Res., 29(11), 2284 (1990)
Huang SH, Radosz M, Ind. Eng. Chem. Res., 30(8), 1994 (1991)
Gross J, Sadowski G, Ind. Eng. Chem. Res., 40(4), 1244 (2001)
Muller EA, Gubbins KE, Ind. Eng. Chem. Res., 40(10), 2193 (2001)
Economou IG, Ind. Eng. Chem. Res., 41(5), 953 (2002)
Kouskoumvekaki IA, von Solms N, Michelsen ML, Kontogeorgis GM, Fluid Phase Equilib., 215(1), 71 (2004)
Yarrison M, Chapman WG, Fluid Phase Equilib., 226, 195 (2004)
Freeman PI, Rowlinson JS, Polymer, 1, 20 (1960)
Prange MM, Hooper HH, Prausnitz JM, AIChE J., 35(5), 803 (1989)
Moskala EJ, Howe SE, Painter PC, Coleman MM, Macromolecules, 17(9), 1671 (1984)
Rinderknecht S, Brisson J, Macromolecules, 32(25), 8509 (1999)
Li D, Brisson J, Macromolecules, 30(26), 8425 (1997)
Barker JA, Henderson D, J. Chem. Phys., 47(8), 2856 (1967)
Gross J, Sadowski G, Fluid Phase Equilib., 168(2), 183 (2000)
Gross J, Spuhl O, Tumakaka F, Sadowski G, Ind. Eng. Chem. Res., 42(6), 1266 (2003)
Gros HP, Bottini S, Brignole EA, Fluid Phase Equilib., 116(1-2), 537 (1996)
Bae YC, Lambert SM, Soane DS, Prausnitz JM, Macromolecules, 24(15), 4403 (1991)
Saraiva A, Persson O, Fredenslund A, Fluid Phase Equilib., 91, 291 (1993)
Daubert TE, Danner RP, Sibul HM, Stebbins CC, "Physical and Thermodynamic Properties of Pure Chemical Data Compilation", Taylor & Francis (1995)
Lee SH, Hasch BM, McHugh MA, Fluid Phase Equilib., 117(1-2), 61 (1996)
Sadowski G, Mokrushina LV, Arlt W, Fluid Phase Equilib., 139(1-2), 391 (1997)
Gross J, Sadowski G, Ind. Eng. Chem. Res., 41(5), 1084 (2002)
Tumakaka F, Gross J, Sadowski G, Fluid Phase Equilib., 194, 541 (2002)
Luengo G, Rubio RG, Sanchez IC, Macromol. Chem. Phys., 195, 1043 (1994)
Luengo G, Rojo G, Macromolecules, 24(6), 1315 (1991)
Swank DJ, Mullins JC, Fluid Phase Equilib., 30, 101 (1986)
Lee BC, Danner RP, AIChE J., 42(11), 3223 (1996)
Chen SJ, Economou IG, Radosz M, Macromolecules, 25(19), 4987 (1992)
Sanchez IC, Lacombe RH, J. Phys. Chem., 80(21), 2352 (1976)
Lacombe RH, Sanchez IC, J. Phys. Chem., 80(23), 2568 (1976)
Kumar SK, Suter UW, Reid RC, Ind. Eng. Chem. Res., 26(12), 2532 (1987)
Yoo KP, Shin MS, Yoo SJ, You SS, Lee CS, "A New Equation of State based on Nonrandom Two-Fluid Lattice Theory for Complex Mixtures", Fluid Phase Equilibria, 111, 175, 111, 175 (1995)
Song YH, Lambert SM, Prausnitz JM, Ind. Eng. Chem. Res., 33(4), 1047 (1994)
Chiew Y, Mol. Phys., 70(1), 129 (1990)
Song YH, Lambert SM, Prausnitz JM, Macromolecules, 27(2), 441 (1994)
Huang SH, Radosz M, Ind. Eng. Chem. Res., 29(11), 2284 (1990)
Huang SH, Radosz M, Ind. Eng. Chem. Res., 30(8), 1994 (1991)
Gross J, Sadowski G, Ind. Eng. Chem. Res., 40(4), 1244 (2001)
Muller EA, Gubbins KE, Ind. Eng. Chem. Res., 40(10), 2193 (2001)
Economou IG, Ind. Eng. Chem. Res., 41(5), 953 (2002)
Kouskoumvekaki IA, von Solms N, Michelsen ML, Kontogeorgis GM, Fluid Phase Equilib., 215(1), 71 (2004)
Yarrison M, Chapman WG, Fluid Phase Equilib., 226, 195 (2004)
Freeman PI, Rowlinson JS, Polymer, 1, 20 (1960)
Prange MM, Hooper HH, Prausnitz JM, AIChE J., 35(5), 803 (1989)
Moskala EJ, Howe SE, Painter PC, Coleman MM, Macromolecules, 17(9), 1671 (1984)
Rinderknecht S, Brisson J, Macromolecules, 32(25), 8509 (1999)
Li D, Brisson J, Macromolecules, 30(26), 8425 (1997)
Barker JA, Henderson D, J. Chem. Phys., 47(8), 2856 (1967)
Gross J, Sadowski G, Fluid Phase Equilib., 168(2), 183 (2000)
Gross J, Spuhl O, Tumakaka F, Sadowski G, Ind. Eng. Chem. Res., 42(6), 1266 (2003)
Gros HP, Bottini S, Brignole EA, Fluid Phase Equilib., 116(1-2), 537 (1996)
Bae YC, Lambert SM, Soane DS, Prausnitz JM, Macromolecules, 24(15), 4403 (1991)
Saraiva A, Persson O, Fredenslund A, Fluid Phase Equilib., 91, 291 (1993)
Daubert TE, Danner RP, Sibul HM, Stebbins CC, "Physical and Thermodynamic Properties of Pure Chemical Data Compilation", Taylor & Francis (1995)
Lee SH, Hasch BM, McHugh MA, Fluid Phase Equilib., 117(1-2), 61 (1996)
Sadowski G, Mokrushina LV, Arlt W, Fluid Phase Equilib., 139(1-2), 391 (1997)
Gross J, Sadowski G, Ind. Eng. Chem. Res., 41(5), 1084 (2002)
Tumakaka F, Gross J, Sadowski G, Fluid Phase Equilib., 194, 541 (2002)
Luengo G, Rubio RG, Sanchez IC, Macromol. Chem. Phys., 195, 1043 (1994)
Luengo G, Rojo G, Macromolecules, 24(6), 1315 (1991)
Swank DJ, Mullins JC, Fluid Phase Equilib., 30, 101 (1986)
Lee BC, Danner RP, AIChE J., 42(11), 3223 (1996)
Chen SJ, Economou IG, Radosz M, Macromolecules, 25(19), 4987 (1992)
