𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Concentration dependence of diffusivities of penetrants in glassy polymer membranes

✍ Scribed by E. Sada; H. Kumazawa; J.-S. Wang


Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
321 KB
Volume
48
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Diffusion of small molecules in glassy p
✍ M. PΓΆnitsch; P. Gotthardt; A. GrΓΌger; H. G. Brion; R. Kirchheim πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 255 KB πŸ‘ 2 views

Small molecules in glassy polymers are considered to occupy sites with a distribution of free energies of dissolution. Then their diffusivity depends on concentration and temperature in the same way as it has been derived for hydrogen atoms in metallic glasses. For hydrogen it was shown that the tra

Diffusion of radioactively tagged penetr
✍ Chong-Kon Rhee; John D. Ferry; L. J. Fetters πŸ“‚ Article πŸ“… 1977 πŸ› John Wiley and Sons 🌐 English βš– 452 KB πŸ‘ 1 views

## Abstract The diffusion of radioactively tagged __n__‐hexadecane, __n__‐dotriacontane, and a polybutadiene oligomer with molecular weight 1600 has been studied in 12 rubbery polymers. Diffusion coefficients were obtained from the theory for the thin smear method: for __n__‐hexadecane and for __n_

Permeation of mixed gases in glassy poly
✍ E. Sada; H. Kumazawa; P. Xu; S.-T Wang πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 397 KB πŸ‘ 1 views

Steady-state permeation rates for pure COz and CH4 and the binary mixture through homogeneous dense polysulfone and polycarbonate membranes have been measured at 40Β°C and upstream pressures up to 26 atm. The pressure dependence of the mean permeability coefficients for COz and CH, for all of the sys