Summary
This paper presents the application of the technique of thermogravimetry to the determination of the pyrolysis kinetics of two crosslinked epoxide polymers. Polymer I was prepared from diglycidyl ether of 2,2-di-p-hydroxyphenyl propane and maleic anhydride; and Polymer II from the same monomer andm-phenylenediamine. First order kinetics were observed for both of the polymers. An activation energy of 34 ± 1 Kcal and a frequency factor of 6.2 ± 0.3 x 109 sec−1 were obtained for the pyrolysis of Polymer I and 31 -J- 1 Kcal and 2.7 -j- 0.2 x 109 sec-' for the pyrolysis of Polymer II.
Zusammenfassung
Die Technik der Thermogravimetrie wird für Untersuchungen der Pyrolysekinetik von zwei vernetzten Oxidharzen angewendet. Das Polymer I war hergestellt aus Diglycidyläther von 2,2-di-p-Hydroxyl-phenylpropan und Maleinsäureanhydrid; das PolymereII aus dem gleichen Monomer undm-Phenylendiamin. Es ergab sich in beiden Fällen eine Reaktion erster Ordnung. Die Aktivierungsenergien und der vorexponentielle Faktor betragen für die Polymeren I und 11: 34 ± 1 kcal und 6,2 ± 0,3 x 109 see−1 bzw. 31 ± 1 kcal und 2,7 ± 0,2 x 109 sec−1.
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References
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Anderson, H. C., Anal. Chem.32, 1592 (1960).
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Anderson, H.C. Kinetics of pyrolysis of epoxide polymers. Kolloid-Z.u.Z.Polymere 184, 26–28 (1962). https://doi.org/10.1007/BF01840134
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DOI: https://doi.org/10.1007/BF01840134