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On the diffusion of gases in partially crystalline polymers

✍ Scribed by J. A. Horas; M. G. Rizzotto

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
466 KB
Volume
27
Category
Article
ISSN
0887-6266

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πŸ“œ SIMILAR VOLUMES

Gas diffusion in partially crystalline p
Gas diffusion in partially crystalline polymers part I: Concentration dependence
✍ Jorge A. Horas; M. G. Rizzotto πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 402 KB πŸ‘ 2 views

In this work, a phenomenological model for the gas diffusion in partially crystalline polymers using differential effective medium theory is presented. By making an analogy with the power law known as Archie's law which relates the d.c. conductivity of a brine saturated porous rock to its porosity;

Gas diffusion in partially crystalline p
Gas diffusion in partially crystalline polymers part II: Temperature dependence
✍ Jorge A. Horas; M. G. Rizzotto πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 500 KB

A molecular model for diffusion of gases and vapors of low-molecular weight at low pressures through semicrystalline polymer films is developed. The formulation of a molecular model allows us to consider the temperature dependence a t constant penetrant concentration of the effective diffusion coeff

Effect of microheterogeneities on the di
Effect of microheterogeneities on the diffusion of gases through glassy polymers
✍ J. A. Horas; E. R. Reyes; J. E. Magnin πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 395 KB

## Abstract The diffusion of gases through glassy polymers is studied and the effective diffusion coefficient __D__^eff^ is represented as the result of the superposition of two fundamental mechanisms, namely slipping and hopping. __D__^eff^ is calculated by a two‐point correlation method. Comparis