Correlation of liquid-liquid equilibria for dextran + poly (ethylene glycol) + water aqueous two-phase systems

Fan Zhou, Sunao Yamada, Satien Dew Raghoe, Takeshi Furuya, Yoshio Iwai, Yasuhiko Arai

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    In this work we consider the thermodynamic description of the liquid-liquid phase behaviour of dextran+poly (ethylene glycol)+ water aqueous two-phase systems which are of great interest for separations in modern biotechnology. This paper is primarily concerned with the comparison of correlation performance among the osmotic virial, the conventional Flory-Huggins and the modified Flory-Huggins models for the aqueous two-phase polymer systems containing dextran and poly (ethylene glycol). The effect of the average molecular weight of the polymers on the phase diagram, i. e., liquid-liquid two-phase region, was discussed. Furthermore, the distribution behaviour of polymer of which the molecular weight is diversed, such as dextran, was also considered.

    Original languageEnglish
    Pages (from-to)35-49
    Number of pages15
    JournalMemoirs of the Kyushu University, Faculty of Engineering
    Volume56
    Issue number1
    Publication statusPublished - Mar 1 1996

    All Science Journal Classification (ASJC) codes

    • Energy(all)
    • Atmospheric Science
    • Earth and Planetary Sciences(all)
    • Management of Technology and Innovation

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