## Abstract The freeβvolume theory of diffusion is used to predict the effect of the glass transition on the concentration dependence of the solvent selfβdiffusion coefficient at constant temperature. The theoretical prediction is in agreement with experimental data. Β© 2003 Wiley Periodicals, Inc.
Concentration dependence of solvent self-diffusion coefficients
β Scribed by J. S. Vrentas; C.-H. Chu
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 345 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Diffusion coefficient measurements for solvents in concentrated polymer solutions require consideration of both concentration dependence of the diffusion coefficient and surface resistance to mass transport. Solutions to the diffusion equation have been generated where these effects are
Self-diffusion and partition coefficients were measured for two commercial ethylene-propylene-diene copolymers (EPDM) and five solvents at infinite dilution using inverse gas chromatography. Mutual diffusion coefficients for solvents in EPDM also were measured for finite concentration using gravimet