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Properties of supercritical CO2 saturated poly(ethylene glycol) nonylphenyl ether

✍ Scribed by Krassimir Dimitrov; Lubomir Boyadzhiev; Roland Tufeu

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
61 KB
Volume
200
Category
Article
ISSN
1022-1352

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✦ Synopsis

Density and viscosity of poly(ethylene glycol) nonylphenyl ether (PEG-NPE) saturated with supercritical carbon dioxide (SC CO 2 ), as well as the interfacial tension in the PEG-NPE-SCCO 2 system, were evaluated for the temperature range of 323 K to 343 K and pressures of 10.0 to 25.5 MPa. Remarkable polymer swelling as a result of solvent penetration was observed, and the coefficient of swelling for the above mentioned experimental conditions was evaluated. Data obtained show that the viscosity of polymerrich phase is a decreasing function of both temperature and pressure. Moreover interfacial tension is a decreasing linear function of carbon dioxide density.

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