Journal ArticleDOI
About a quasi-universal character of unstabilised polyethylene thermal oxidation kinetics
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TLDR
In this paper, a quasi-universal behavior for the thermal oxidation of polyethylene, irrespective to branching and other structural irregularities or crystallinity, has been shown, which is consistent with the hypothesis that radical chain oxidation of PE is essentially initiated by the bimolecular decomposition of hydroperoxides.About:
This article is published in Polymer Degradation and Stability.The article was published on 2003-01-01. It has received 59 citations till now. The article focuses on the topics: Arrhenius equation & Polyethylene.read more
Citations
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Journal ArticleDOI
Oxidation of polyethylene under irradiation at low temperature and low dose rate. Part II. Low temperature thermal oxidation
TL;DR: In this article, a model based on the hypothesis that this discontinuity concerns only the PO 2 bimolecular combination processes and is essentially explained by the competition between terminating and nonterminating PO 2 ǫ+ǫ reactions, was proposed.
Journal ArticleDOI
Impact of Oxygen Transport Properties on Polypropylene Thermal Oxidation, Part 1: Effect of Oxygen Solubility
Alexandre François-Heude,Alexandre François-Heude,Emmanuel Richaud,Alain Guinault,Eric Desnoux,Xavier Colin +5 more
TL;DR: In this article, a general kinetic model was proposed to describe the polypropylene thermal oxidation of thin polyethylene films in a wide range of temperatures (from 60 to 200°C) and oxygen partial pressures (from 0.02 to 5 MPa) using a single set of parameters.
Journal ArticleDOI
Determination of thermal oxidation rate constants by an inverse method. Application to polyethylene
TL;DR: In this article, a kinetic model for polymer thermal oxidation derived from the standard mechanistic scheme, in which initiation is only due to (uni and bimolecular) hydroperoxide decomposition, has been elaborated.
Journal ArticleDOI
Irreversible structural changes during PET recycling by extrusion
TL;DR: In this paper, the authors used Steric Exclusion chromatography (SEC) and rheometry to study irreversible structural changes occurring during poly(ethylene terephthalate) (PET) extrusion.
Journal ArticleDOI
Thermal oxidation kinetics of additive free polyamide 6-6
TL;DR: In this paper, a non-empirical kinetic model has been derived from the oxidation mechanistic scheme previously established for PE, but improved by adding elementary reactions specific to polyamides such as the rapid decomposition of unstable hydroxylated amide groups.
References
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Book
Handbook of Polymer Degradation
TL;DR: In this article, the effects of stratospheric ozone depletion on weatherability of polyethylene were investigated, and the degradation and stabilization of polyproplylene was discussed. Andrady et al.
Journal ArticleDOI
Absolute Rate Constants for Hydrocarbon Autoxidation. XXI. Activation Energies for Propagation and the Correlation of Propagation Rate Constants with Carbon–Hydrogen Bond Strengths
TL;DR: The rate constants for the abstraction of a hydrogen atom from a wide variety of organic substrates at 30° have been correlated with the strength of the C-H bond that are broken, D[R-H].
Journal ArticleDOI
Close loop mechanistic schemes for hydrocarbon polymer oxidation
TL;DR: In this paper, a quasi-independence of the kinetic behavior with initial conditions (for low initial content of thermolabile structures), and the fact that an arbitrarily defined induction period depends only on the rate constant of unimolecular hydroperoxide decomposition were compared with literature data relative to the thermal oxidation of polypropylene in solid state.
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