The measurement of polymer swelling processes by an interferometric method and evaluation of diffusion coefficients
Language English Country Switzerland Media electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
20386653
PubMed Central
PMC2852853
DOI
10.3390/ijms11020532
PII: i11020532
Knihovny.cz E-resources
- Keywords
- concentration profile, diffusion, hyaluronan, image analyses, interferometry, swelling,
- MeSH
- Diffusion MeSH
- Interferometry * MeSH
- Kinetics MeSH
- Hyaluronic Acid chemistry MeSH
- Polymers chemistry MeSH
- Solvents chemistry MeSH
- Software MeSH
- Temperature MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Hyaluronic Acid MeSH
- Polymers MeSH
- Solvents MeSH
The amorphous polymer film swelling in a liquid solvent below the glass transition temperature was characterized by a few kinetic parameters (especially the mutual diffusion coefficient of swelling and its mean value) obtained by interference of monochromatic light in the wedge arrangement. This interferometric method allows one to determine the concentration field in the swollen surface layer and consequently to compute the concentration-dependent diffusion coefficient. A software system developed at the Department of Physics and Material Engineering at TBU in Zlin has been used for the evaluation of the main kinetic parameters of the swelling process. The software can be used for the on-line analyses of interferograms during the swelling process. The main application outputs are the computation of the concentration profile, the concentration gradient, the mutual diffusion coefficient of the swelling by the solvent and its mean value.
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Effect of Hofmeister Ions on Transport Properties of Aqueous Solutions of Sodium Hyaluronate
