Journal ArticleDOI
The structure and stability of oxidised polybutadiene
Ian C. McNeill,W.T.K. Stevenson +1 more
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In this article, it has been shown that polybutadiene has been oxidised at 0-20°C for periods from one day up to several months and also at elevated temperatures.About:
This article is published in Polymer Degradation and Stability.The article was published on 1985-01-01. It has received 16 citations till now.read more
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Book ChapterDOI
15 – Thermal Degradation
TL;DR: In this paper, the authors present some useful aspects of thermal degradation, including the potential use of a polymeric material and, in the extreme case, the hazards presented by the polymer in a fire situation.
Journal ArticleDOI
Long-Term Behavior of Oil-Based Varnishes and Paints. Photo- and Thermooxidation of Cured Linseed Oil
TL;DR: In this article, the chemical modifications of the networks were determined by infrared analysis coupled with gaseous treatments (NO, SF4, and NH3), and the photooxidation reactions were fully described in detail.
Journal ArticleDOI
Photooxidation of polybutadiene at long wavelengths (λ > 300 nm)
Magali Piton,Agnès Rivaton +1 more
TL;DR: In this paper, two successive steps are involved in the transformation of polybutadiene (BR) films on irradiation, when oxygen can diffuse through the irradiated film, photooxidation reactions occur implying the formation of hydroperoxides, α,β-unsaturated species and final saturated carboxylic acid groups.
Journal ArticleDOI
Thermal degradation and stability of HTPB-based polyurethane and polyurethaneureas
TL;DR: In this paper, a two-step degradation profile of polybutadiene and polyurethane was studied as a function of the chain extender concentration and cross-link density.
Journal ArticleDOI
Thermal oxidation of polybutadiene. Part 3: Molar mass changes of additive-free non-crosslinked polybutadiene
TL;DR: In this article, the structural changes at the macromolecular scale from rheometric measurements of polybutadiene have been studied for one temperature: 100 °C and the relative contributions of intra-and intermolecular additions are estimated from the kinetic model elaborated in the second part of this article, using an inverse approach.
References
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Journal ArticleDOI
Thermal volatilization analysis of high polymers
TL;DR: In this paper, the small pressure which exists in a continuously evacuated system between a hot sample, decomposing to volatile products, and a cold trap placed some distance away is recorded continuously as the temperature of the sample is increased in a linear manner.
Journal ArticleDOI
Chain Scission in the Oxidation of Hevea. II
TL;DR: The efficiency of chain scission of raw Hevea by molecular oxygen increases rapidly with increase of temperature to a limiting value of about 6.2 molecules of oxygen per bond broken as mentioned in this paper.
Journal ArticleDOI
Structural studies of polyethers [(CH2)mO]nXI. Skeletal vibrations of planar zigzag polyethers
TL;DR: In this paper, the skeletal vibrations of a planar zigzag polymethylene chain were analyzed based on the normal mode calculations by using a valence force field and a number of new frequency data has been obtained for the skeletal torsional modes.
Journal ArticleDOI
Chain Scission in the Oxidation of Hevea. II.
TL;DR: The efficiency of chain scission of raw Hevea by molecular oxygen increases rapidly with increase of temperature to a limiting value of about 6.2 molecules of oxygen per bond broken as discussed by the authors.
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Degradation studies of some polyesters and polycarbonates—8. Bisphenol A polycarbonate
Ian C. McNeill,A. Rincon +1 more