Antagonism between phenolic antioxidants and an organic acid

The role of stearic acid in the kinetics of polypropylene oxidation in the presence of 2,2 1-methylene-bis(4-methyl-6- tert-butyl-phenol) and 3,5-di- tert-butyl-4-hydroxyphenylpropionic acid diethyleneglycol ester has been studied. It has been demonstrated that this acid increases the critical conce...

Full description

Saved in:
Bibliographic Details
Published in:Polymer degradation and stability 1992, Vol.36 (1), p.1-4
Main Authors: Mar'in, A.P., Shlyapnikov, Yu.A., Mahkamov, A.Zh, Dzhalilov, A.T.
Format: Article
Language:English
Subjects:
Applied sciences
Compounding ingredients
Exact sciences and technology
Polymer industry, paints, wood
Stabilizers (antioxydants, antiozonants, etc.)
Technology of polymers
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The role of stearic acid in the kinetics of polypropylene oxidation in the presence of 2,2 1-methylene-bis(4-methyl-6- tert-butyl-phenol) and 3,5-di- tert-butyl-4-hydroxyphenylpropionic acid diethyleneglycol ester has been studied. It has been demonstrated that this acid increases the critical concentration of the antioxidant with little effect on the rate constant of its consumption. The role of esterification reactions between antioxidant and acid is negligible. It is presumed that oxidant effectiveness is reduced by formation of complexes of antioxidant and acid.
ISSN:0141-3910
1873-2321
DOI:10.1016/0141-3910(92)90041-3