Analysis of sorption/desorption and diffusion kinetics of ketones and nitriles at 25, 44, and 60ะC 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 th
Sorption and diffusion of organic esters into fluoropolymer membranes
โ Scribed by Tejraj M. Aminabhavi; Ravindra S. Munnolli; William M. Stahl; Subhas V. Gangal
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 589 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
A sorption gravimetric technique has been used to estimate the diffusion and thermodynamic parameters of four different VITON fluoropolymers in the presence of five ester molecules. Diffusion parameters have been obtained by assuming the Fickian transport and their concentration dependencies are studied. Fluorine contents of the fluoropolymers have significant effects on the membrane transport characteristics. 0
๐ SIMILAR VOLUMES
Sorption and migration of six aliphatic esters into four VITON fluoroelastomers were studied by a gravimetric sorption method in the temperature interval of 30-60ะC. Fick's equation was used to obtain diffusion coefficients. The dependence of fluorine contents and the polymer morphology on the sorpt
Sorption and diffusion of ethanol, 1,1,1-trichloroethane (TCA), and trichloroethylene (TCE) were investigated in polydimethylsiloxane (PDMS) membranes using a gravimetric technique. The thermodynamic equilibrium and kinetic properties were evaluated at temperatures of 25, 100, and 150ะC. The sorptio
Sorption kinetics and diffusion of hexane, heptane, octane, nonane, decane, cyclohexane, and 2,2,4-trimethylpentane through tetrafluoroethylene/propylene copolymer membranes were studied using the gravimetric sorption method at 30, 45, and 60ยฐC. Coefficients of diffusion were calculated from Fick's
Molecular transport of organic liquids into Viton fluoropolymers has been investigated by a sorption-desorption gravimetric method. Diffusion coefficients have been calculated from Fick's equation. The sorption-desorption results have been used to calculate the concentration profiles by solving Fick
## Abstract The present study reports an investigation on the molecular transport of 10 monocyclic aromatic liquids (benzene, chlorobenzene, 1,2โdichlorobenzene, bromobenzene, toluene, __p__โxylene, trimethylbenzene, ethylbenzene, methoxybenzene, and ethoxybenzene) at 40 and 50ยฐC through sheet poly