Diffusion and sorption of organic liquids through polymer membranes. VI. Polyurethane, neoprene, natural rubber, nitrile butadiene rubber, styrene butadiene rubber, and ethylene propylene diene terpolymer versus organic esters

✍ Scribed by Rajashekhar S. Khinnavar; Tejraj M. Aminabhavi

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 878 KB
• Volume: 46
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1992.070460518

✦ Synopsis

Sorption and diffusion of eight esters into six commercial polymer membranes have been studied by immersion/ weight gain experiments to determine how the transport behavior is affected by the choice of the solvent molecules and the chemical structures of the polymer membranes. The temperature dependence of transport parameters was found to follow the Arrhenius activation theory. It has been proved that the kinetics of equilibrium concentration can be described by the first-order kinetic rate equation. Furthermore, the results of transport parameters have been discussed in terms of the size, shape, and chemical nature of the diffusant molecules.