Thermal aging of acrylic-urethane network: Kinetic modeling and end-of-life criteria combined with mechanical properties

Ishida, Takato; Richaud, Emmanuel; Gervais, Matthieu; Gaudy, Alain; Kitagaki, Ryoma; Hagihara, Hideaki; Elakneswaran, Yogarajah

Thermal aging of acrylic-urethane network: Kinetic modeling and end-of-life criteria combined with mechanical properties

Ishida, Takato; Richaud, Emmanuel; Gervais, Matthieu et al.

Progress in Organic Coatings, 2022, 163, 106654

Permalink : https://hdl.handle.net/2115/90927

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/90927
タイトル	Thermal aging of acrylic-urethane network: Kinetic modeling and end-of-life criteria combined with mechanical properties
著者	Ishida, Takato ; Richaud, Emmanuel ; Gervais, Matthieu ; Gaudy, Alain ; Kitagaki, Ryoma ; Hagihara, Hideaki ; Elakneswaran, Yogarajah
著者名 Ishida, Takato
著者名 Richaud, Emmanuel
著者名 Gervais, Matthieu
著者名 Gaudy, Alain
e-Rad_Researcher 20456148 著者名 Kitagaki, Ryoma
著者名 Hagihara, Hideaki
著者名 Elakneswaran, Yogarajah
言語	英語
キーワード	Kinetics
	Oxidation
	Macromolecular architecture
	Acrylic-urethane network
発行日	2022-02
出版者	Elsevier
収録物名	Progress in Organic Coatings
巻(号)	163
ページ	106654
抄録	This study addresses the multiscale analysis of acrylic urethane networks (AUN). To establish the kinetic model for predicting AUN oxidation, this study considered the pure thermal oxidation of AUN at 160, 180, and 200 degrees C. Chemical changes were monitored using infrared spectroscopy. These indicated the presence of an imide, presumably generated from the oxidation of CH2 at the alpha-position of nitrogen. On the macromolecular and macroscopic scales, oxidation was shown to induce predominant crosslinking, leading to a drop in toughness (i. e., embrittlement). The novel kinetic model of AUN thermal aging was developed from a mechanistic scheme previously established for polyamide 11, by adding some extra paths of thermolytic alkyl radical formation, oxidative N-H bonds decomposition and coupling of aminyl radicals.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報	© <2022>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
PISSN	0300-9440
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.porgcoat.2021.106654