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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

  • DOI - Digital Object Identifier

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

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

  • 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

  • EID of the result in the Scopus database