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Synthesis and characterization of the new silane‐based antioxidant containing 2,6‐di‐ tert ‐butylphenolic stabilizing moiety
Author(s) -
Nedelčev T.,
Krupa I.,
Csomorová K.,
Janigová I.,
Rychlý J.
Publication year - 2007
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.800
Subject(s) - moiety , thermogravimetric analysis , thermogravimetry , silane , differential scanning calorimetry , polymer chemistry , phenol , materials science , stabilizer (aeronautics) , carbon 13 nmr , organic chemistry , nuclear chemistry , chemistry , inorganic chemistry , mechanical engineering , physics , engineering , thermodynamics
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, 1 H‐NMR, 13 C‐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.