Effect of temperature and elongation on the liquid diffusion and permeation characteristics of natural rubber, nitrile rubber, and bromobutyl rubber

The diffusive properties of acetone, dichloromethane, and toluene in natural, nitrile, and bromobutyl rubber membranes at temperatures between 273 and 313 K and uniaxial elongations between 0 and 40% were investigated. As the temperature and elongation increase, the steady state flux increases, and the breakthrough time decreases. An increase in temperature leads to an increase in permeability, and small extensions do not cause significant changes in the diffusive properties. (C) 2000 John Wiley & Sons, Inc.