Effect of Chemical Composition on Gas Transport Properties of Ethylene-based Ionomers
โ Scribed by Del Nobile, Matteo A.; Mensitieri, Giuseppe; Nicolais, Luigi
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 473 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0959-8103
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โฆ Synopsis
Transport properties of oxygen and carbon dioxide in three ethyleneacrylic acid ionomers, characterized by different amounts of acrylic acid groups, percentage of neutralization and counterion type, have been investigated. Gas permeation experiments have been performed in the 25-65ยฐC range. Gas permeabilities, diffusivities and solubilities were evaluated along with activation energies and heats of solution. The transport properties have been analysed in order to correlate the effect of counterion type and its concentration on macromolecular mobility and on polymer-gas interaction, which in turn are the factors determining permeation rate.
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