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Difference method of evaluation of dynamic integral thermogravimetric curves in decomposition of polypropylene

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Abstract

A new differential method of evaluating integral thermogravimetric records of the formation of volatile products during the degradation of polypropylene in air is presented. The method, applied to 0–100% conversion of the polymer to volatile products, may distinguish the initial presence of low molecular compounds in the polymer, as well as changes in the mechanism of degradation of the material.

Zusammenfassung

Es wird eine neue differentielle Methode zur Auswertung der die Bildung von flüchtigen Produkten während der Zersetzung von Polypropylen in Luft widerspiegelnden integralen thermogravimetrischen Kurven dargelegt. Mit der im Bereich 0–100% Konversion von Polymer zu flüchtigen Produkten anwendbaren Methode können sowohl die Anwesenheit niedermolekularer Verbindungen im Polymer als auch Veränderungen im Abbaumechanismus des Materials erkannt werden.

Резюме

Представлен новый ди фференциальный мето д вычисления интеграл ьных термогравиметр ических данных образования л етучих продуктов, образующи хся при распаде полипропилена в атмо сфере воздуха. Метод, использованный для о бласти 0–100%-ного превращения полимер а в летучие продукты, п озволяет различать начальное присутствие в полимере низкомолек улярных соединений, а также изменения в механизм е распада полимера.

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Rychlý, J., Matisová-Rychlá, L. & Vavreková, M. Difference method of evaluation of dynamic integral thermogravimetric curves in decomposition of polypropylene. Journal of Thermal Analysis 25, 423–431 (1982). https://doi.org/10.1007/BF01912968

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  • DOI: https://doi.org/10.1007/BF01912968

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