Determination of permeability and diffusivity of oxygen in polymers by polarographic method with inert gas by polarographic method with inert gas
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F05%3A00025791" target="_blank" >RIV/61389013:_____/05:00025791 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Determination of permeability and diffusivity of oxygen in polymers by polarographic method with inert gas by polarographic method with inert gas
Original language description
A modified polarographic method with inert gas for determination of the oxygen permeability in polymers immersed in liquids is described. Unlike the standard Fatt method, the method with inert gas is suitable also for thick samples and, therefore, for high-permeable materials. Moreover, the edge effects were minimized. The method was tested for prediction of oxygen permeability in poly(1-vinyl 2-pyrrolidone) and poly(2-hydroxyethyl methacrylate). A simple procedure for the diffusivity determination fromthe characteristic time of response as a function of the sample thickness is given. Solubility of oxygen in polymer is calculated from the obtained permeability and diffusivity.
Czech name
Stanovení permeability a difusivity kyslíku v polymerech polarografickou metodou s inertním plynem
Czech description
V práci je popsána modifikovaná polarografická metoda s inertním plynem pro určení permeability kyslíku zbotnalých polymerů. Narozdíl od standardní Fattovy metody, metoda s inertním plynem je vhodná rovněž pro tlustší vzorky a pro vysokopropustné materiály. Navíc byly minimalizovány efekty okraje vzorku. Metoda byla testována pro předpověď permeability řídce síťovaného polyhydroxyethylmethakrylátu a kopolymeru 1-vinyl-2-pyrrolidonu. Difusivita byla jednoduchým postupem určena z časových závislostí jakofunkce tloušťky. Rozpustnost kyslíku v polymeru byla spočtena ze získaných hodnot permeability a difusivity.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA106%2F00%2F1296" target="_blank" >GA106/00/1296: Hydrogel contact lenses with enhanced oxygen permeability</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Polymer
ISSN
0032-3861
e-ISSN
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Volume of the periodical
46
Issue of the periodical within the volume
23
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
9974-9986
UT code for WoS article
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EID of the result in the Scopus database
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