Journal of Polymer Science Part B: Polymer Physics, Vol.39, No.4, 425-431, 2001
Hydrogen uptake mechanism of a silicone-rubber DEB getter mixture
The kinetics of the hydrogen getter 1,4-bis(phenylethynyl)benzene (DEB) blended with carbon-supported Pd (DEB-Pd/C) dispersed uniformly in silicone [DEB-Pd/C-poly(dimethyl siloxane)] were studied with a thermogravimetric method as a function of the hydrogen pressure and temperature. A diffusion-controlled reaction model was developed to explain the experimental results. The diffusion coefficient, solubility coefficient, and permeability of hydrogen through silicone rubber were determined. (C) 2001 John Wiley & Sons, Inc.*