About: The diffusion process of sodium hyaluronate (Na-HA) and Na-HA-n-alkyl derivatives films swelling

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Byl studován difuzní proces bobtnání hyaluronanu jeho hydrofobně modifikovaných derivátů (alkyl deriváty) vodou. Kinetika tohoto procesu byla studována pomocí tzv. interferometrické metody. Na základě měřené kinetiky bylo možné vypočítat vzájemný difuzní koeficient a srovnat jednotlivé vzorky derivátů. Vzorky byly měřeny při třech teplotách (25, 37 a 45°C). Následně byly spočítány aktivační entalpie difuze expanzní práce při přechodu polymerního klubka z pevné fáze do gelové povrchové vrstvy. (cs) 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 Ds determined at three temperatures (25, 37 and 45°C), the activation enthalpy of diffusion connected with the swelling HD,s and the activation enthalpy of the swelling process Hs. The thermodynamic activity of the solvent for the given sodium hyaluronate and its four alkyl derivatives has been expressed through the internal quantity RA,s, i.e. expansion work of polymer coil accomplished by the action of the internal pressure. 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 Ds determined at three temperatures (25, 37 and 45°C), the activation enthalpy of diffusion connected with the swelling HD,s and the activation enthalpy of the swelling process Hs. The thermodynamic activity of the solvent for the given sodium hyaluronate and its four alkyl derivatives has been expressed through the internal quantity RA,s, i.e. expansion work of polymer coil accomplished by the action of the internal pressure. (en)
Title	The diffusion process of sodium hyaluronate (Na-HA) and Na-HA-n-alkyl derivatives films swelling Difuzní proces bobtnání hyaluronanu a jeho alkylových derivátů (cs) The diffusion process of sodium hyaluronate (Na-HA) and Na-HA-n-alkyl derivatives films swelling (en)
skos:prefLabel	The diffusion process of sodium hyaluronate (Na-HA) and Na-HA-n-alkyl derivatives films swelling Difuzní proces bobtnání hyaluronanu a jeho alkylových derivátů (cs) The diffusion process of sodium hyaluronate (Na-HA) and Na-HA-n-alkyl derivatives films swelling (en)
skos:notation	RIV/70883521:28110/07:63505303!RIV08-MSM-28110___
http://linked.open.../vavai/riv/strany	184-190
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM7088352101)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Urban, Pavel Mráček, Aleš Minařík, Antonín Lapčík, Lubomír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Tomáše Bati ve Zlíně / Fakulta technologická
http://linked.open...dnocenehoVysledku	417318
http://linked.open...ai/riv/idVysledku	RIV/70883521:28110/07:63505303
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	hyaluronan; HA-n-alkyl derivatives; Hydrophobic modification; swelling; activation enthalpy; diffusion process of swelling; sodium hyaluronate (en)
http://linked.open.../riv/klicoveSlovo	hyaluronan swelling Hydrophobic modification sodium hyaluronate HA-n-alkyl derivatives activation enthalpy diffusion process of swelling
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[293E7D112198]
http://linked.open...i/riv/nazevZdroje	Journal of Biomedical Materials Research. Part A
http://linked.open...in/vavai/riv/obor	BO
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	83A
http://linked.open...iv/tvurceVysledku	Benešová, Karolína Lapčík, Lubomír Urban, Pavel Minařík, Antonín Mráček, Aleš
http://linked.open...n/vavai/riv/zamer	Multifunctional Composite Systems Based on Natural and Synthetic Polymers
issn	1549-3296
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	28110
is http://linked.open...avai/riv/vysledek of	The diffusion process of sodium hyaluronate (Na-HA) and Na-HA-n-alkyl derivatives films swelling The diffusion process of sodium hyaluronate (Na-HA) and Na-HA-n-alkyl derivatives films swelling The diffusion process of sodium hyaluronate (Na-HA) and Na-HA-n-alkyl derivatives films swelling

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