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Kinetic model of a methacrylate-based monolith polymerizationMihelič, Igor, 1974- ...Monolithic stationary phases are becoming more and more important in the filed fo liquid chromatography, because they enable extremly fast separations. Methacrylate-based monoliths are produced via a ... free-radiacal bulk polymerization of glycidyl methacrylate and ethylene dimethacrylate using a benzoyl peroxide as an iniatiator. Preparation of large monliths represents a big problem becouse of the heat release dduring the polymerization, which consequently leads to the distortion of the structure. A closer investigation of the polymerization, using differential scanning calorimetry, was performed in order to determine global kinetic parameters. A multiple heating rate method, based on the work of Ozawa, Flynn, and Wall, was applied for estimation of the values of the apparent activation energy, preexponential factor, and reaction order. Global polymerization kinetics is of first order with ▫$A=1.681x10^9s^{-1}$▫ and ▫$E_{a,app}$▫=81.5 kJ/mol, where polymerization is approximately 190 J/g. In addition, the influence of air and nitrogen atmosphere on polymerization is presented.Source: Industrial & engineering chemistry research. - ISSN 0888-5885 (Vol. 40, no. 16, 2001, str. 3495-3501)Type of material - article, component partPublish date - 2001Language - englishCOBISS.SI-ID - 23768069
Author
Mihelič, Igor, 1974- |
Krajnc, Matjaž, 1969- |
Koloini, Tine, 1940-2008 |
Podgornik, Aleš
Topics
kemijska tehnika |
polimerno inženirstvo |
organska tehnologija |
radikalska polimerizacija |
kopolimerizacija |
inženirska analiza |
kinetični model |
monolitske kolone |
polimeri |
glicidil metakrilat |
etilen dimetilmetakrilat
source: Industrial & engineering chemistry research. - ISSN 0888-5885 (Vol. 40, no. 16, 2001, str. 3495-3501)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Mihelič, Igor, 1974- | 19085 |
Krajnc, Matjaž, 1969- | 14126 |
Koloini, Tine, 1940-2008 | 03071 |
Podgornik, Aleš | 12728 |
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