Effect of Polymer Concentration and Solvent on the Phase Behavior of Poly(ethylene-co-octene) and Hydrocarbon Binary Mixture

Poly(ethylene-co-octene)과 탄화수소 2성분계 혼합물의 상거동에 대한 고분자 농도 및 용매의 영향

  • Lee, Sang-Ho (Department of Chemical Engineering, Dong-A University) ;
  • Chung, Sung-Yun (Department of Chemical Engineering, Dong-A University) ;
  • Kim, Hyo-Jun (Department of Chemical Engineering, Dong-A University) ;
  • Park, Kyung-Gyu (Department of Chemical Engineering, Dong-A University)
  • 이상호 (동아대학교 화학공학과) ;
  • 정성윤 (동아대학교 화학공학과) ;
  • 김효준 (동아대학교 화학공학과) ;
  • 박경규 (동아대학교 화학공학과)
  • Published : 2004.12.31

Abstract

Cloud-point and bubble-point curves for poly(ethylene-co-13.8 mol% octene) ($PEO_{13.8}$) and Poly(ethylene-co-15.3 mol% octene) ($PEO_{15.3}$) were determined up to $150^{\circ}C$ and 450 bar in hydrocarbons which have different molecular size and structure. Whereas ($PEO_{15.3}$+ n-pentane) system has cloud-point and bubble-point type transitions, ($PEO_{15.3}$+ n-propane) and ($PEO_{15.3}$+ n-butane) systems do only cloud-point type transition. In cyclo-pentane, -hexane, -heptane, and -octane, $PEO_{15.3}$ has a bubble-point transition. ($PEO_{13.8}$+ n-butane) mixture has a critical mixture concentration at 5 wt% PEO. (PEO + hydrocarbon) mixtures exhibit LCST type behavior. Solubility of PEO increases with hydrocarbon size due to increasing dispersion interaction which is favorable to dissolve PEO.

References

  1. G. Baker, 'Modern Plastics', p.65, Chemical Week Associates, New York, Mid October, 1991
  2. M. J. Kaus, 'Modern Plastics Encyclopedia', p.68,Chemical Week Associates, New York, Mid October, 1988
  3. Sr. L. K. Mergenhagen, 'Modem Plastics', p.64, Chemical Week Associates, New York, Mid October, 1991
  4. R. P. Brentin, 'Modem Plastics Encyclopedia', p.57, Chemical Week Associates, New York, 1988
  5. K. C. Chan, H. Adidharma, and M. Radosz, 'Fluidliquid and fluid-solid transitions of poly(ethyleneco-octene-1) in sub- and supercritical propane solutions', Industrial & Engineering Chemistry Research, 39, 3069 (2000) https://doi.org/10.1021/ie990761e
  6. A. K. C. Chan, H. Adidharma, and M. Radosz, 'Fluid-liquid transitions of poly(ethylene-co-octene-l ) in supercritical ethylene solutions', Industrial & Engineering Chemistry Research, 39, 4370 (2000) https://doi.org/10.1021/ie990851j
  7. H.-S. Kwon and S.-H. Lee, 'Phase Behavior Study of Poly(ethylene-co-octene) in normal-Hydrocarbons', Elastomer, 38, 51 (2003)
  8. J. M. Prausnitz, R. N. Lichtenthaler, E. G. Azevedo, 'Molecular Thermodynamics of Fluid Phase Equilibria', 2nd ed., Prentice-Hall, Englewood Cliffs, NJ, 1986
  9. S.-H. Lee, M.A. LoStracco, B.M. Hasch, and M.A. Mchugh, 'Solubility of poly(ethylene-co-acrylicacid) in low molecular weight hydrocarbons and dimethyl ether. Effect of copolymer concentration, solvent quality, and copolymer molecular weight', J. Phys. Chem., 98, 4056 (1994)
  10. S.-H. Lee, and M.A. Mchugh, 'The Effect of Hydrogen Bonding on the Phase Behavior of Poly(ethylene-co-acrylate acid)-Ethylene-Cosolvent Mixtures at High Pressures', Korea J. Chem. Eng., 19, 114 (2002). https://doi.org/10.1007/BF02706883
  11. Engage polyolefin elastomer product information, Dupont-Dow Company, September 2001
  12. R. C. Reid, J. M. Prausnitz, and B. E. Poling, 'The Properties of Gases and Liquids', 4th ed., p.656, McGraw-Hill, New York, U.S.A., 1987
  13. T. E. Daubert, 'Vapor-Liquid Critical Properties of Elements and Compounds. 5. Branched Alkanes and Cycloalkanes', J Chem. Eng Data, 41, 365 (1996) https://doi.org/10.1021/je9501548