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Antioxidants and stabilizers—XXIII. Influence of the structure of methylenebisphenols on antioxidative activity in isotactic polypropylene

✍ Scribed by J. Pospíšil; Ľ. Kotuľák; V. Halaška

Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
497 KB
Volume
7
Category
Article
ISSN
0014-3057

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✦ Synopsis

An investigation has been made of the antioxidative activity of methylenebisphenols, methylenebis(alkoxyphenols), methylenebisCoyrocateehols) and (3,4-dimcthoxybenzyl)phenols in the stabilization of isotactic polypropylene. Methylenebisphenols appear to be the most active antioxidants if they are appropriately substituted. Methylenebis(pyrocatechols) are the least active, but their activity is improved by partial etherification.

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✍ L. Jiráčková; J. Pospišil 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 358 KB

Abslraet--The antioxidative activities of phenols derived from 2,6-di-tert. butyl-4-methylphenol (I) and 2,4-dimethyl-6-tert.butylphenol (and containing at position 4 or 2 to the hydroxyl group a substituent with the heteroatoms O, S or N) have been investigated. The highest activity was observed wi