The diffusion process of sodium hyaluronate (Na-Ha) and Na-Ha-n-alkyl derivatives films swelling
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
17397039
DOI
10.1002/jbm.a.31188
Knihovny.cz E-zdroje
- MeSH
- časové faktory MeSH
- difuze MeSH
- hydrofobní a hydrofilní interakce MeSH
- kyselina hyaluronová analogy a deriváty chemie MeSH
- povrchové vlastnosti MeSH
- teplota MeSH
- termodynamika MeSH
- tlak MeSH
- uhlovodíky chemie MeSH
- voda MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- kyselina hyaluronová MeSH
- uhlovodíky MeSH
- voda MeSH
The process of diffusion of sodium hyaluronate and its hydrophobically modified alkyl derivatives in water was studied by measuring the kinetics of solid polymer film swelling. The following fundamental thermodynamic parameters of the swelling process were calculated: the apparent diffusion coefficient of swelling by water D(s) determined at three temperatures (25, 37, and 45 degrees C), the activation enthalpy of diffusion connected with the swelling DeltaH(D,s) and the activation enthalpy of the swelling process DeltaH(s). The thermodynamic activity of the solvent for the given sodium hyaluronate and its four alkyl derivatives has been expressed through the internal quantity RA(delta,s), that is expansion work of polymer coil accomplished by the action of the internal pressure.
Citace poskytuje Crossref.org
Effect of Hofmeister Ions on Transport Properties of Aqueous Solutions of Sodium Hyaluronate
The influence of Hofmeister series ions on hyaluronan swelling and viscosity
