Application of the fractal model to estimate the diffusion and solubility of gases in non-porous membranes based on aromatic polynorbornene dicarboximides
| Autor: | Arlette A. Santiago, Joel Vargas, Selena Gutiérrez, Jorge A. Cruz-Morales, Manuel Burelo |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics Diffusion Organic Chemistry Synthetic membrane Thermodynamics 02 engineering and technology respiratory system 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Fractal dimension 0104 chemical sciences Fractal Membrane Materials Chemistry Gaseous diffusion Physics::Chemical Physics Solubility 0210 nano-technology Glass transition |
| Zdroj: | Journal of Polymer Research. 28 |
| ISSN: | 1572-8935 1022-9760 |
| DOI: | 10.1007/s10965-021-02601-2 |
| Popis: | The fractal model was applied to estimate the gas diffusion and solubility coefficients in non-porous membrane structures characterized by fractal dimension. Analytical expressions were obtained taking into account several parameters such as the diameter of gases, free volume, and glass transition temperature. Theoretical data were validated by comparison with experimental values for hydrogen, nitrogen, oxygen, carbon-dioxide, methane, ethylene, and propylene gases in membranes prepared from aromatic polynorbornene dicarboximides. In general, the calculated data from the fractal model were in agreement with the experimental data, with the exception of CO2 due to plasticization effects. The outcomes indicate that the fractal model is a useful tool to predict the gas permeability in different types of polymer membranes. |
| Databáze: | OpenAIRE |
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