On the role of penetrant structure in diffusion in structured polymers
โ Scribed by M.G. Kulkarni; R.A. Mashelkar
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 831 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0032-3861
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๐ SIMILAR VOLUMES
Sulfonated aromatic polyamide and different salts were synthesized. Water vapor diffusion in these polymers and X-ray diffraction of these polymers before and after water immersion were studied. The concentration dependence of the dihsivity is related to the morphological structure in the dry state
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