Pyrolysis of poly[2,4,6-tri(methylamino)borazine] and its conversion into BN fibers

The pyrolysis process of poly[2,4,6-tri(methylamino)borazine]-based fibers has been studied in detail. The condensation of polymer leads to infusible fibers with a three-dimensional polymeric network from 70 to 400 °C. A polymer–mineral transition occurs since 400 to give amorphous hydrogenated fibe...

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Bibliographic Details
Published in:Journal of organometallic chemistry 2002-09, Vol.657 (1), p.91-97
Main Authors: Bernard, S, Cornu, D, Miele, P, Vincent, H, Bouix, J
Format: Article
Language:English
Subjects:
BN fibers
Ceramization
Chemical Sciences
Cross-link
Crystallization
Engineering Sciences
Material chemistry
PolyMAB
Polymer–mineral transition
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Summary:The pyrolysis process of poly[2,4,6-tri(methylamino)borazine]-based fibers has been studied in detail. The condensation of polymer leads to infusible fibers with a three-dimensional polymeric network from 70 to 400 °C. A polymer–mineral transition occurs since 400 to give amorphous hydrogenated fibers at 1000 °C. The chemical conversion process is complete at 1400 °C and the BN fibers crystallize up to 1800 °C. The pyrolysis process of poly[2,4,6-tri(methylamino)borazine]-based fibers has been studied in detail. The condensation of polymer leads to infusible fibers with a three-dimensional polymeric network from 70 to 400 °C. A polymer–mineral transition occurs since 400 to give amorphous hydrogenated fibers at 1000 °C. The chemical conversion process is complete at 1400 °C and the BN fibers crystallize up to 1800 °C.
ISSN:0022-328X
1872-8561
0022-328X
DOI:10.1016/S0022-328X(02)01543-7