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Thermogravimetric analysis of polymers with indanic structure

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Abstract

The thermal stability of polycarbonates, polythiocarbonates, and polyesters derived from a diphenol with an indanic structure, was studied and compared with the corresponding polymers derived from a diphenol with the same number of carbon atoms but no forming the indanic ring, showing that polymers with an indanic structure degrade at lower temperature due the rigidity of the indanic ring respect to those with an aliphatic structure. Also, the kinetic parameters of the thermal decomposition were determined by using the Arrhenius relationship and a computer program. In the considered range, all the polymers studied degraded in a single stage and theE values increase when the bulk of the side group increases and the rigidity decreases.

Zusammenfassung

Die stabilität gegen Warme von Polycarbonaten, Polythiocarbonaten und polyestern gewinnen aus einem Diphenol mit einer indan Struktur wird studiert und vergleicht mit denjenigen von analogen Polymeren gewinnen auseinem Diphenol mit der gleichen nummer von Kohlenstoffatomen ohne Bildung von einem Indanring. Diese Versuche zeigen, daß die Polymere mit einer Indanstruktur bei tiefer Temperatur ais diejenige mit einer alifatischen Struktur degradieren auf Grund der Streng des Indanringes. Die kinetische Parametern der Zersetzung gegen Warme der Polymeren wurden durch die Arrhenius Gleichung und ein Komputerprogram in dem angesehenden Bereich bestimmt. Alle Polymere durch einen Schritt zerfallen. Die E-Werte zunehmen, wenn die große der Seitegruppe zunimmt und die Strenge abnimmt.

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Tagle, L.H., Diaz, F.R. Thermogravimetric analysis of polymers with indanic structure. Journal of Thermal Analysis 38, 2385–2395 (1992). https://doi.org/10.1007/BF02123992

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  • DOI: https://doi.org/10.1007/BF02123992

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