Carbonization behaviour of modified synthetic mesophase pitches

Stabilization of naphthalene-derived synthetic mesophase pitch was achieved by controlled oxidation or reaction with phenanthrenequinone (PHQ) in order to suppress the swelling during high-temperature treatments. The modified pitches were characterized and their carbonization behaviour was studied b...

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Bibliographic Details
Published in:Carbon (New York) 2005-09, Vol.43 (11), p.2277-2284
Main Authors: Dumont, M., Dourges, M.-A., Bourrat, X., Pailler, R., Naslain, R., Babot, O., Birot, M., Pillot, J.-P.
Format: Article
Language:English
Subjects:
Carbonization
Chemical treatment
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Isotropic carbon
Materials science
Mesophase pitch
Oxidation
Physics
Specific materials
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Summary:Stabilization of naphthalene-derived synthetic mesophase pitch was achieved by controlled oxidation or reaction with phenanthrenequinone (PHQ) in order to suppress the swelling during high-temperature treatments. The modified pitches were characterized and their carbonization behaviour was studied by thermogravimetry–mass spectrometry. The results show that naphthenic groups are involved in the stabilization process. PHQ reacts via cycloaddition reactions, yielding oxygen-containing non-planar structures, a feature that accounts for the loss of anisotropic properties of the final material.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2005.04.007