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Thermal oxidation of polypropylene close to industrial processing conditions

✍ Scribed by Ariel Hoff; Sven Jacobsson

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
621 KB
Volume
27
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

Thermal oxidation of isotactic polypropylene (PP) at 220 and 280°C in air was studied. Gas chromatography–mass spectrometric analysis was used to separate and identify the volatile products of PP oxidation. Twenty‐three products were identified and 15 substances were quantified. The aldehydes are the principal products formed, followed by ketones, acids, and alcohols. The main organic product quantified was acetaldehyde. The volatile organic products formed constitute about 3% of the amount of water formed. The relative amounts of the most volatile products formed in the range 220–280°C are practically independent on the temperature of oxidation. The mechanism of formation on the oxidation products is discussed.

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