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Diffusion in glassy polymers

✍ Scribed by Alfrey, Turner ;Gurnee, E. F. ;Lloyd, W. G.

Publisher
Wiley (John Wiley & Sons)
Year
2007
Weight
609 KB
Volume
12
Category
Article
ISSN
0449-2994

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πŸ“œ SIMILAR VOLUMES

Diffusion in glassy polymers. III
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Solvent diffusion in amorphous glassy po
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In this article, a mathematical model is proposed for predicting solvent self-diffusion coefficients in amorphous glassy polymers based on free volume theory. The basis of this new model involves consideration of the plasticization effects induced by small molecular solvents to correctly estimate th

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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