Phase Behavior of Poly(ethylene-co-propylene) in Ethylene and Carbon Dioxide: Experimental Results and Modeling with the Statistical Associating Fluid Theory Equation of State

T.J. Vries, de, P.J.A. Somers, T.W. Loos, de, M.A.G. Vorstman, J.T.F. Keurentjes

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    13 Citations (Scopus)

    Abstract

    For the application of supercritical carbon dioxide as a medium for polymer processing, it is important to have reliable thermodynamic data of the systems involved. In this study, experimental cloud-point data of binary systems of ethylene-poly(ethylene-co-propylene) (PEP) are presented for different molecular weights, 8.7 and 51 kg/mol, respectively. Also, the influence of carbon dioxide on the binary system ethylene-PEP51 is studied. Additionally, the experimental results have been modeled using the statistical associating fluid theory equation of state. Using a single isopleth to determine the binary interaction parameter between PEP and CO2, intermediate compositions can adequately be predicted.
    Original languageEnglish
    Pages (from-to)4510-4515
    Number of pages5
    JournalIndustrial and Engineering Chemistry Research
    Volume39
    Issue number12
    DOIs
    Publication statusPublished - 2000

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