Dipentylamine-modifimelt-spinnableed polyborazylene: A new, melt-spinnable polymeric precursor to boron nitride ceramic fibers

Chemistry of Materials

Volumn 8, Issue 1, 1996, Pages 3-5

  Wideman, Thomas ^a   Sneddon, Larry G ^a  

^a UNIVERSITY OF PENNSYLVANIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0002305317     PISSN: 08974756     EISSN: None     Source Type: Journal    
DOI: 10.1021/cm950398b     Document Type: Article

References (29)

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22. 0.49: B, 20.98%; N, 31.63%; C, 38.08%, H, 9.31%. Anal. Found: B, 20.73%; N, 32.20%; C. 36.13%; H, 9.22%.
23. -1.
24. g) of the polymer. TGA studies showed decomposition did not begin until 95 °C. Unmodified polyborazylene exhibits a broad endotherm at 125 °C, but does not melt, and loses weight above 80 °C, as described in ref 8
25. 3 for DPAPB-derived BN ceramic fibers are comparable to those for bulk BN from DPAPB powder pyrolysis (see ref 13), and for BN derived from unmodified polyborazylene, see ref 8.
26. 3. The DPAPB-derived ceramics exhibited similar crystallinity as ceramics obtained from unmodified polyborazylene under similar conditions.
27. MSC/R-AXIS He area detector employing graphite-monochromated Mo Kα. radiation.
28. Performed on a Perkin Elmer TGA 7 at 5 °C/min under breathing air.
29. Wideman, T.; Sneddon, L. G. Inorg. Chem. 1994, 34, 1002-1003.