Abstract
Using a custom built reactor, we modelled the decomposition of a high performance Acetylene Terminated Sulfone (ATS) resin, more precisely bis[4-(3-ethynyl phenoxy) phenyl] sulfone and its higher oligomers, under partially anaerobic conditions. The residue of thermal degradation was shown to possess a higher oxidative stability than early products of thermal degradation, which “scavanged” oxygen in the reactor to form secondary products such as carbon monoxide, carbon dioxide, and water: thus preventing direct oxidation of the resin. On removal of volatile products of thermal degradation, the carbonaceous char residue of thermal degradation is directly oxidized to carbon monoxide, carbon dioxide, and water.
Zusammenfassung
Unter Anwendung eines spezialangefertigten Reaktors modellierten wir die Zersetzung eines acetylenendständigen Sulfonhochleistungsharzes (ATS), genauer gesagt von bis[4-(3-ethinylphenoxy)phenyl]sulfon und seiner höheren Oligomere, unter partiellen anaeroben Bedingungen. Die im Endergebnis des thermischen Abbaues erhaltene Substanz verfügt über eine höhere oxidative Stabilität als die während des thermischen Abbaues vorher erhaltenen Produkte, die im Reaktor mit Sauerstoff sekundäre Produkte wie Kohlenmonoxid, Kohlendioxid und Wasser bilden; somit wird einer direkten Oxidation des Harzes vorgebeugt. Bei Entfernung der flüchtigen Produkte des thermischen Abbaues wird der kohlenstoffreiche Halbkoksrest des thermischen Abbaues direkt zu Kohlenmonoxid, Kohlendioxid und Wasser oxidiert.
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The authors would like to thank Mr. J. Heines for his technical help and Mr. R. Grant who fabricated most of the free standing glassware described here. In addition, W. T. K. Stevenson would like to thank the National Research Council for its support in the provision of a Research Associateship for him at W.P.A.F.B. for the duration of this work.
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Stevenson, W.T.K., Goldfarb, I.J. Degradation of an Acetylene Terminated Sulfone (ATS) resin. Journal of Thermal Analysis 36, 2667–2691 (1990). https://doi.org/10.1007/BF01913662
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DOI: https://doi.org/10.1007/BF01913662