Jae Gyeong Jung

Hanyang University, Sŏul, Seoul, South Korea

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Publications (2)5.79 Total impact

  • Jae Gyeong Jung, Young Chan Bae
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    ABSTRACT: We developed a simple and improved expression for the Helmholtz energy of mixing which uses a Taylor series of an exponential function based on extending the Redlich–Kister expansion. This model incorporates the chain-length dependence of polymers and specific interactions such as hydrogen bonds. The proposed model can accurately predict most phase diagrams of various binary polymer solutions including upper critical solution temperature (UCST), lower critical solution temperature (LSCT), both UCST and LCST, and closed miscibility loops. Our model fits experimental data of the complex phase behavior of polymer solutions well.
    European Polymer Journal 02/2010; 46(2):238-245. DOI:10.1016/j.eurpolymj.2009.10.026 · 3.24 Impact Factor
  • Jae Gyeong Jung, Young Chan Bae
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    ABSTRACT: We have developed a new Flory-Huggins model by adding a specific interaction parameter derived from a modified double-lattice model for the Helmholtz energy of mixing for binary liquid mixtures. This model is very simple and could be easily integrated into engineering applications. Using this revised model, we can successfully describe the phase behavior of polymer solutions with an upper critical solution temperature (UCST), a lower critical solution temperature (LCST), both UCST and LCST, and a closed miscibility loop. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 162–167, 2010
    Journal of Polymer Science Part B Polymer Physics 01/2010; 48(2):162 - 167. DOI:10.1002/polb.21883 · 2.55 Impact Factor