Journal ArticleDOI
Catalytic thermal oxidation of phenolic antioxidants by hindered piperidine compounds
TLDR
In this article, it was shown that the stable N -oxy radical generated during thermal processing catalytically oxidises phenolic antioxidants to their corresponding quinone forms, and the implications of this interaction, particularly with regard to its effect on light stability, are discussed.About:
This article is published in Polymer Degradation and Stability.The article was published on 1980-11-01. It has received 26 citations till now. The article focuses on the topics: Piperidine & Quinone.read more
Citations
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Journal ArticleDOI
The photo-stabilisation of polypropylene: a review
TL;DR: In this paper, an in-depth account of the complex mechanisms involved in both thermal and photochemical oxidation of polyolefins, with particular emphasis on polypropylene and the interactions that take place thermally.
Journal ArticleDOI
Photostabilising mechanisms of HALS: A critical review
J. Sedlar,J. Marchal,J. Petruj +2 more
TL;DR: The mechanism by which hindered amine light stabilisers (HALS) protect polymers involves a multitude of functions which are now critically reviewed as discussed by the authors, including metal complexing by HALS, involvement of nitroxyls in redox reactions with metal ions, in ROOH excited state quenching and in the deactivation of radicals formed in ketone photolysis.
Journal ArticleDOI
Influence of various stabilizer systems on the ageing behavior of PE–MD—I. Hot-water ageing of compression molded plaques
G. Dörner,R.W Lang +1 more
TL;DR: In this paper, the ageing behavior of compression molded PE-MD plaques stabilized with different antioxidants (AO), UV-stabilizers based on hindered aimines (HALS), and combinations thereof is compared.
Patent
Medical instruments made from a polyolefin composition which has been sterilized with gamma irradiation
TL;DR: In this paper, a polyolefin resin is compounded with a specific hindered amine and a specific phenol or its phosphorous ester, each in an amount of from 0.01 to 1 part by weight per 100 parts of the polyolein.
Journal ArticleDOI
Photo-stabilising action of metal chelates in polypropylene—Part I: Excited state quenching versus UV antioxidant action under polychromatic irradiation
TL;DR: In this article, the photo-stabilising action of three metal chelates (nickel (II) 2,2′ thiobis (4-tert-octylphenylato) n -butylamine and the nickel and calcium derivatives of bis (ethyl-3,5-di-TERt-butyl-4-hydroxybenzyl) phosphonate, in polypropylene) was examined using normal and second order derivative ultraviolet, infra-red and phosphorescence spectroscopic techniques and hydroperoxide analysis.
References
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Book
The infra-red spectra of complex molecules
TL;DR: In this article, the authors present a survey of research work in physics, physical sciences, and physical chemistry, focusing on physics, chemistry, physics, and biology. But they do not discuss their work in this paper.
Book
Photochemistry of man-made polymers
John F. McKellar,Norman S. Allen +1 more
TL;DR: Ge Geoffroy and Mark S. Wrighton as mentioned in this paper presented the utter variation of this ebook in ePub, doc, DjVu, PDF, txt formats, and they had a link to the site where you may load or reading online.
Journal ArticleDOI
The Photooxidative Degradation of Polypropylene. Part II. Photostabilization Mechanisms
D. J. Carlsson,D. M. Wiles +1 more
TL;DR: A comprehensive list of UV-stabilizers and stabilizer structures have appeared in the recent literature [1, 4] as mentioned in this paper, which has led to the development of many UV stabilizers for general use in films, fibers, and moldings.