Synthesis and characterization of the new silane‐based antioxidant containing 2,6‐di‐tert‐butylphenolic stabilizing moiety

doi:10.1002/PAT.800

Paper

Synthesis and characterization of the new silane‐based antioxidant containing 2,6‐di‐tert‐butylphenolic stabilizing moiety

Published Feb 1, 2007 · Tomáš Nedelčev, I. Krupa, K. Csomorová

Polymers for Advanced Technologies

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9

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Abstract

A new kind of antioxidant 4-[(3-(triethoxysilyl)propylimino)methyl]-2,6-di-tert-butylphenol consisting of an alkoxysilyl group and a 2,6-di-tert-butylphenol stabilizing moiety was synthesized and tested in isotactic poly(propylene). FT-IR, 1H-NMR, 13C-NMR, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) were used for characterization of synthesized silane stabilizer. The derivative of 4-[(3-(triethoxysilyl)propylimino)methyl]-2,6-di-tert-butylphenol was also prepared by the condensation reaction using the sol-gel process. Stabilizing activity of the new silane stabilizer and its condensed form was verified by chemiluminiscence and thermogravimetry measurements in oxygen atmosphere and compared with conventional 2,6-di-tert-butyl-4-methyl- phenol as well as with the conventional stabilizing system based on the mixture of Irganox 1010/Irgafos168 (weight ratio of 1:2). Copyright © 2007 John Wiley & Sons, Ltd.

Study Snapshot

The new silane-based antioxidant with 2,6-di-tert-butylphenolic stabilizing moiety shows promising stability in isotactic poly(propylene) and can be used as a cost-effective alternative to conventional 2,6-di-tert-butyl-4-methyl-

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Synthesis and characterization of the new silane‐based antioxidant containing 2,6‐di‐tert‐butylphenolic stabilizing moiety

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