Thermal stability and degradation mechanism of C60 fullerene‐based polymers

In this paper, the thermal stability and degradation mechanisms of C60 fullerene‐based polymers, obtained by click polymerization between dialkyne‐substituted C60 derivative monomers and 1,3,5‐tris(dodecyloxy)benzene‐based diazide comonomers, were evaluated. The activation energy of the fullerene po...

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Bibliographic Details
Published in:Journal of applied polymer science 2024-03, Vol.141 (11)
Main Authors: Gabriela, Lisa, Cerasela‐Ionela Cleminte, Michinobu, Tsuyoshi
Format: Article
Language:English
Subjects:
Benzene
Benzoates
Buckminsterfullerene
Degradation
Fourier transforms
Fullerenes
Infrared analysis
Infrared spectroscopy
Polymers
Stability analysis
Thermal decomposition
Thermal stability
Thermogravimetric analysis
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Summary:In this paper, the thermal stability and degradation mechanisms of C60 fullerene‐based polymers, obtained by click polymerization between dialkyne‐substituted C60 derivative monomers and 1,3,5‐tris(dodecyloxy)benzene‐based diazide comonomers, were evaluated. The activation energy of the fullerene polymer C60P2 with an ethylene spacer, determined under peak degradation rate conditions, was lower than that of the counter polymer C60P1 with a methylene spacer, suggesting lower thermal stability of C60P2. The combined technique of thermogravimetric analysis—mass spectroscopy and Fourier transform infrared spectroscopy revealed that the thermal decomposition onset of the analyzed samples is accompanied by CC cleavage of the dodecyloxyside chain groups, followed by the decomposition of the 1,2,3‐triazole, dicarboxylate and benzoate moieties. It was found that no thermal decomposition of the fullerene carbon cage occurs up to 670°C. Molecular modeling with Hyperchem software version 7.5 confirmed that C60P1 is more thermally stable than C60P2.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.55079