BOTELLA, Philippe; CANSELL, François; GARRABOS, Yves; SIX, J.L.; GNANOU, Yves; LE NEINDRE, Bernard; TUFEU, Roland

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BOTELLA, Philippe
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

CANSELL, François
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

GARRABOS, Yves
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Ce document a été publié dans

High Temperatures-High Pressures. 1997, vol. 29, n° 4, p. 449-451

Old City Publishing

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New experimental data concerning the thermodynamic behaviour of l-chloro-1,1difluoroethane (HCFC-142b) are presented and compared to published data. These results are correlated by simple equations of state like the Peng-Robinson. HCFC-142b has been used for fractionation of poly(ethyleneoxide) (PEO). For supercritical fluid processing, it was found to be quite efficient in obtaining a polymer with a very narrow molecular distribution. PEO fractionation has been reported at 423 K in the pressure range 8-35 MPa.< Réduire

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Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026