Successive desorption experiments of water vapor in poly(methyl methacrylate) (PMMA) were performed at temperatures from 31.0 to 45.0ยฐC. The solubility of water in PMMA was found to be independent of temperature in agreement with literature findings. But the results for diffusion showed stronger dep
Concentration dependence of water vapour diffusion in hydrogen-bonded polymer blends
โ Scribed by W.P. Hsu; A.S. Myerson; T.K. Kwei
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 155 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0014-3057
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The dependence ofwater-diffusion in polyamide 6 on water concentration can be described by the equation D(c)=D(O) + p2. The mean value D correlates with the diffusion coefficient defined by Fick's law and depends exponentially on temperature with the activation energy E, = 0.49 eV. The diffusion pro