Reactions of antioxidants with molecular oxygen. Part II. Isooctyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate in silicone matrix

The study of oxidation kinetics of isooctyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (Irganox 1135) stabiliser was carried out using silicone oil as an inert substrate. The stabiliser was exposed at 80–120 °C under 0.02–3.0 MPa oxygen pressure. UV/VIS spectrophotometry, gel permeation chromat...

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Bibliographic Details
Published in:Polymer degradation and stability 2011-05, Vol.96 (5), p.965-973
Main Authors: Navarro, R., Audouin, L., Verdu, J.
Format: Article
Language:English
Subjects:
Antioxidants
Applied sciences
Chemical Sciences
Compounding ingredients
Exact sciences and technology
gel chromatography
Gel permeation chromatography
GPC
high performance liquid chromatography
HPLC
Inert
Kinetics
Liquid chromatography
Mathematical models
oils
Organic chemistry
oxidation
oxygen
Phenolic antioxidant
Polymer industry, paints, wood
Polymers
propionic acid
Reaction kinetics
silicone
Silicones
spectroscopy
Stability
Stabilizers (antioxydants, antiozonants, etc.)
Technology of polymers
Thermal oxidation
UV/VIS
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Summary:The study of oxidation kinetics of isooctyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (Irganox 1135) stabiliser was carried out using silicone oil as an inert substrate. The stabiliser was exposed at 80–120 °C under 0.02–3.0 MPa oxygen pressure. UV/VIS spectrophotometry, gel permeation chromatography and high pressure liquid chromatography were used to follow the stabiliser consumption, whose kinetic parameters were determined by applying a simple kinetic model.
ISSN:0141-3910
1873-2321
DOI:10.1016/j.polymdegradstab.2011.01.024