Pospisil, Jan published the artcileAntioxidants and stabilizers. XXII. Comparison of the antioxidative activities of dihydric phenols and their oxidation products, Formula: C14H22O2, the publication is European Polymer Journal (1970), 6(10), 1347-58, database is CAplus.
The effects of 4-tert-alkyl pyrocatechols (I) and their oxidation produces on the autoxidation of Tetralin (initiated at 60° with azobisisobutyronitrile) were investigated. Whereas I act as oxidation inhibitors, 4-tert-alkyl 1,2-benzoquinones have pronounced retardation effects and 2-hydroxy-5-tert-alkyl 1,4-benzoquinones have only negligible effects. Similar investigations were carried out with 2-tert-alkyl hydroquinones, the inhibition activities of which are 2.5 to 3.5 times lower than those of I. The oxidation products of alkylhydroquinones (2-tertalkyl 1,4-benzoquinones and 2-hydroxy-6-tert-alkyl 1,4-benzoquinones) are much weaker oxidation retarders than quinones derived from alkylpyrocatechols. The antioxidative activity of I and 2-tert-alkyl hydroquinones in the stabilization of Tetralin is influenced by the same substituent factors as in the oxidation of isotactic polypropylene. Conclusions concerning the structural factors influencing the antioxidative activity of these quinoid compounds can be extrapolated to the polymeric substrate.
European Polymer Journal published new progress about 1139-46-4. 1139-46-4 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Phenol, name is 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol, and the molecular formula is C14H22O2, Formula: C14H22O2.
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