Experimental Determination of b and g Critical Exponents in the Sol-gel Phase Transition by Using Steady-state Fluorescence Technique
The gelation of methyl methacrylate and ethylene glycol dimethacrylate was studied using the steady-state fluorescence technique. Samples with various crosslinker densities were prepared and sol-gel phase transitions were observed at various temperatures. Percolation theory was employed to interpret...
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Veröffentlicht in: | Turkish journal of physics 1999-01 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The gelation of methyl methacrylate and ethylene glycol dimethacrylate was studied using the steady-state fluorescence technique. Samples with various crosslinker densities were prepared and sol-gel phase transitions were observed at various temperatures. Percolation theory was employed to interpret the results. For all samples the gel fraction and the average cluster size exponents, b and g, were measured and found to be around 0.42 and 1.7 respectively. These values show excellent agreement with theoretical and simulation results. |
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ISSN: | 1300-0101 1303-6122 |