Prediction of Phase Behavior of ε-caprolactam Derivatives and Carbon Dioxide using a Group Contribution Method 


Vol. 11,  No. 3, pp. 117-122, Sep.  2005


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  Abstract

N-vinyl caprolactam (NVCL), a kind of N-vinyl amide monomer, must be dissolved in continuous phase (scCO2) for dispersion polymerization in supercritical carbon dioxide. Phase behavior of CO2+NVCL is very important and necessary for determining initial polymerization condition and for monomer extraction from final polymer. There is the limitation of experimental method for obtaining pure properties of the monomer because of the possibility of polymerization. And N-methyl caprolactam (NMCL) is the useful solvent for the gas treating process. In the viewpoint of molecular thermodynamics, NVCL and NMCL have same functional group i.e. ε-caprolactam. In the case of NVCL, hydrogen of amide group is substituted with vinyl group and for NMCL, hydrogen of amide group is substituted with methyl group. We suggested modified group contribution method for this ε-caprolactam derivatives. This new group contribution parameter was applied to correlate CO2 + N-vinyl caprolactam or N-methyl caprolactam system.

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  Cite this article

[IEEE Style]

K. S, B. W, L. K, K. H, "Prediction of Phase Behavior of ε-caprolactam Derivatives and Carbon Dioxide using a Group Contribution Method," Clean Technology, vol. 11, no. 3, pp. 117-122, 2005. DOI: .

[ACM Style]

Kwon S, Bae W, Lee K, and Kim H. 2005. Prediction of Phase Behavior of ε-caprolactam Derivatives and Carbon Dioxide using a Group Contribution Method. Clean Technology, 11, 3, (2005), 117-122. DOI: .

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한국연구재단 등재학술지