✦ LIBER ✦

Sorption/desorption and diffusion kinetics of ketones and nitriles into fluoropolymer membranes

✍ Scribed by Tejraj M. Aminabhavi; Sujata F. Harlapur

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 286 KB
Volume: 65
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19970725)65:4<635::aid-app2>3.0.co;2-l

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✦ Synopsis

Analysis of sorption/desorption and diffusion kinetics of ketones and nitriles at 25, 44, and 60ЊC into three Du Pont's VITON fluoropolymer membranes loaded with different amounts of carbon black has been undertaken by use of a sorption/ desorption technique. The transport results are affected by the percent loading of carbon blacks. Diffusion coefficients have been calculated from Fick's equation. These results show a decrease with increasing amount of carbon black. Experimental results have been analyzed by considering swelling of the membranes. Sorption/desorption results have been analyzed from a calculation of the concentration profiles, which are obtained from the analytical solution of Fick's equation. These results have been compared with a numerical solution based on the finite difference method.

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