Chemiluminescence from peroxides in polypropylene: II. Luminescence and kinetics of peroxide decomposition

Billingham, Norman Ć.; Then, E.T.H.; Kron, Anna

doi:10.1016/s0141-3910(96)00169-3

Cited by 24 publications

(2 citation statements)

References 19 publications

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“…However, the factor 2 between the model's and the target values could result from unsuitable simplifying hypotheses used for determining analytical equation (7): (i) The hypothesis of unimolecular thermal initiation, while decomposition of hydroperoxides was shown to be mostly bimolecular at these temperatures [67]; (ii) The hypothesis of a unique chromophoric species.…”

Section: The Heuristic Value Of the Kinetic Modelmentioning

confidence: 99%

Influence of temperature, UV-light wavelength and intensity on polypropylene photothermal oxidation

François-Heude¹,

Richaud²,

Desnoux³

et al. 2014

Polymer Degradation and Stability

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. a b s t r a c tA criterion based on the energy absorbed by photosensitive species was proposed to describe the contribution of UV-light to the initiation of the polypropylene photothermal oxidation whatever the light source. The calculation of this energy was performed using the widely accepted quantum theory. The criterion was then introduced in two different types of analytical models commonly used to describe the combined effects of UV light and temperature on induction time, namely: the reciprocity law and kinetic model. The limitations of both types of analytical models were then investigated: the latter, derived from a realistic mechanistic scheme, was found to be much more relevant than the former, which is presumably valid in a restricted range of light intensities, essentially due to its empirical origin. Ó

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Section: The Heuristic Value Of the Kinetic Modelmentioning

confidence: 99%

Influence of temperature, UV-light wavelength and intensity on polypropylene photothermal oxidation

François-Heude¹,

Richaud²,

Desnoux³

et al. 2014

Polymer Degradation and Stability

View full text Add to dashboard Cite

show abstract

“…More recently it has been suggested that CL may arise from, or be moderated by interactions with impurities or deliberately added reagents, acting as CL activators [19][20][21][22]. However, despite the fact that the detailed mechanism of CL emission is uncertain, its intensity has been shown to correlate with oxidation as measured by oxygen uptake [23] accumulation of oxidation products (hydroperoxides, carbonyl) [12,[24][25][26][27] or failure time in oven ageing [28]. In particular, the induction period, i.e.…”

Section: Introductionmentioning

confidence: 99%