ISSN:
0022-3832
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The thermal oxidative degradation of an inhibited butadiene-acrylonitrile copolymer has been studied kinetically by means of infrared spectroscopy and color formation in the temperature range 100-200°C. In this type of degradation hydroxyl- and carbonylcontaining groups are formed from the decomposition of hydroperoxide or hydroperoxide radicals. The carbonyl groups are ketonic, resulting from a vinyl ketone initially formed by oxidative attack on the tertiary hydrogen and from a competing attack on α-hydrogen. The interaction of the product of the latter competing reaction forms an intermediate, the decomposition of which requires an activation energy of 18 kcal./mole and yields a carbonyl and hydroxyl group. The radicals and hydroperoxides may also react to give either scission or aggregation. The oxidative products from these reactions give many types of oxygenated groups and radicals.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1962.1206217306
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