Studies of fractal growth patterns in poly (ethylene oxide) and chitosan membranes
| Autor: | Nor Sabirin Mohamed, Shahizat Amir, Siti Aishah Hashim Ali |
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| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
animal structures Materials science Ethylene oxide General Chemical Engineering General Engineering Synthetic membrane Oxide General Physics and Astronomy Nanotechnology Polymer Electrolyte respiratory system Fractal dimension Condensed Matter::Soft Condensed Matter chemistry.chemical_compound Fractal Membrane chemistry Chemical engineering natural sciences General Materials Science circulatory and respiratory physiology |
| Zdroj: | Ionics. 17:121-125 |
| ISSN: | 1862-0760 0947-7047 |
| DOI: | 10.1007/s11581-010-0500-8 |
| Popis: | Polymer electrolyte membranes containing various weight percent of salt have been prepared in the authors’ laboratory for the study of their potential applications in solid state electrochemical devices; however, the polymer electrolyte membranes were found to become sort of media for fractal growth, months after they were prepared. Fractal growth patterns in polymer membranes of poly (ethylene oxide) and chitosan membranes have been analyzed, and their fractal dimensions were determined. A diffusion-limited aggregate model which is based on the Brownian motion theory is applied to simulate the experimentally obtained fractal patterns. The approach was extended by performing computer simulations with computing resources available. The fractal dimension values of the simulated and the experimentally obtained original fractal patterns were marginally close. This indicates that the simulation work has successfully produced fractal patterns that are in fairly acceptable conformity with the fractal patterns observed in the polymer membranes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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