Thermal stability of substituted poly-xylylenes |
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Authors: | G Modica F Di Renzo E Tempesti C Mazzocchia |
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Institution: | (1) Dipartimento di Chimica Industriale e Ingegneria Chimica, Politecnico di Milano, P. Leonardo Da Vinci 32, 20133 Milano;(2) Dipartimento di Ingegneria Chimica, Chimica Industriale e Materiali, Università Dell'aquila, Italia |
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Abstract: | The insertion of meta units in the chain of poly-p-xylylene decreases both the onset temperature of oxidative degradation and the rate of decomposition.Functionalization of the polymer with chlorine and sulphonic groups makes the chain more resistant to high temperature treatments, notwithstanding the low stability of the substituent groups.
Zusammenfassung Die Einführung von Metaeinheiten in die Kette von Poly-p-xylen setzt sowohl die Einsetztemperatur des oxydativen Abbaues als auch die Zersetzungsgeschwindigkeit herab. Die Einführung von Chlor und Sulfogruppen erhöht trotz der geringen Stabilität der Substituenten die Temperaturbeständigkeit der Kette.
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