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A novel time lag method for the analysis of mixed gas diffusion in polymeric membranes by on-line mass spectrometry: Method development and validation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F18%3A43915800" target="_blank" >RIV/60461373:22340/18:43915800 - isvavai.cz</a>

  • Alternative codes found

    RIV/67985858:_____/18:00493318

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S0376738818304022" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0376738818304022</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.memsci.2018.04.029" target="_blank" >10.1016/j.memsci.2018.04.029</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    A novel time lag method for the analysis of mixed gas diffusion in polymeric membranes by on-line mass spectrometry: Method development and validation

  • Original language description

    A novel method to determine the individual diffusion coefficients of gases in a mixture during their permeation through polymeric membranes is described. The method was developed in two independent laboratories, using rubbery Pebax (R) and glassy Hyflon (R) AD60X membrane samples as standards, and validated using the Troger&apos;s base containing Polymer of Intrinsic Microporosity, PIM-EA-TB. Monitoring of the permeate composition in real time by a quadrupole mass spectrometer allowed the analysis of the permeation transient for gas mixtures. Two operation modes, either with a vacuum in the permeate and a direct connection to the mass spectrometer via a heated restriction, or using a sweeping gas and a heated capillary sample inlet, give excellent agreement with the traditional time lag method for single gases. A complete overview of the method development, identification of the critical parameters, instruments calibration, data elaboration and estimation of the experimental accuracy are provided. Validation with PIM-EA-TB, shows that the method can also successfully detect anomalous phenomena, related to pressure and concentration dependency of the transport properties, physical aging or penetrant-induced dilation. Rapid online analysis of the permeate composition makes the method also very suitable for routine mixed gas permeability measurements.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10404 - Polymer science

Result continuities

  • Project

  • Continuities

    V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Membrane Science

  • ISSN

    0376-7388

  • e-ISSN

  • Volume of the periodical

    561

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    20

  • Pages from-to

    39-58

  • UT code for WoS article

    000434713700005

  • EID of the result in the Scopus database

    2-s2.0-85047365249