On the Pace–Datyner theory of diffusion of small molecules through polymers
✍ Scribed by A. Kloczkowski; J. E. Mark
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 413 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0887-6266
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## Abstract In the framework of the free‐volume (FV) theory, a new equation was derived for the evaluation of self‐diffusion coefficients of small molecules in polymers above the mixture glass transition temperature. The derivation of the equation turned out to be straightforward once the equivalen
The diffusion of fairly small organic molecules in polymers above their glass transitions is normally governed by Fick's law but with diffusion coetficients that are strongly, almost exponentially, increasing functions of penetrant concentration. Attempts to develop a comprehensive and quantitative
Model interactions have been studied by phosphorescence quenching to obtain a better understanding of the chain length dependence of interpolymeric chain end-chain end reactions such as those involved in the termination step of free radical polymerization. For small molecule-polymer interactions in