Oxidation and unzipping in ELIUM resin: Kinetic model for mass loss

•thermal ageing of PMMA and ELIUM resin at temperatures fro 230 to 310°C under oxygen or nitrogen•unzipping initiated by chain ends under nitrogen vs random chain scissions in presence of oxygen•proposal of a kinetic model for fitting mass loss curves This paper gives a first study of the thermal an...

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Bibliographic Details
Published in:Polymer degradation and stability 2021-04, Vol.186, p.109523-13, Article 109523
Main Authors: Chebil, Mohamed Souheib, Bouaoulo, Guillaume, Gerard, Pierre, Euch, Salma EL, Issard, Hervé, Richaud, Emmanuel
Format: Article
Language:English
Subjects:
Acrylic resin
Chain scission
Chain scissions
Chains
Chemical Sciences
Kinetics
Nitrogen
Oxidation
Oxygen
PMMA
Polymers
Studies
Thermal ageing
Thin films
Unzipping
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Summary:•thermal ageing of PMMA and ELIUM resin at temperatures fro 230 to 310°C under oxygen or nitrogen•unzipping initiated by chain ends under nitrogen vs random chain scissions in presence of oxygen•proposal of a kinetic model for fitting mass loss curves This paper gives a first study of the thermal and thermal oxidative ageing of ELIUM® resins. Chain ends unzipping was observed to be the main degradation mechanism under nitrogen whereas an oxidation mechanism with random chain scissions is shown to predominate in presence of oxygen. A first simplified kinetic model is proposed and fits experimental results for thin films at temperatures ranging from 230 to 310°C under oxygen or nitrogen.
ISSN:0141-3910
1873-2321
DOI:10.1016/j.polymdegradstab.2021.109523