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Borylborazines as new precursors for boron nitride fibres

Abstract : A variety of borylborazine-based polymers were successfully converted into boron nitride fibres via the preceramic polymer route. In this procedure, four monomers were polycondensed into highly tractable polymers which could be easily melt-spun into fine-diameter green fibres. These polymeric filaments were then transformed into boron nitride fibres after a well-defined heat-treatment at 1800 °C in a controlled atmosphere. All the resulting ceramic fibres were mechanically tested. In particular, results showed that the promising mechanical properties for two of the polymer-derived fibres were closely related to the structural units of the corresponding preceramic polymers.
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https://hal-cnrs.archives-ouvertes.fr/hal-02617030
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Submitted on : Monday, May 25, 2020 - 9:30:59 AM
Last modification on : Saturday, June 13, 2020 - 7:34:06 AM

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Philippe Miele, Bérangère Toury, David Cornu, Samuel Bernard. Borylborazines as new precursors for boron nitride fibres. Journal of Organometallic Chemistry, Elsevier, 2005, 690 (11), pp.2809-2814. ⟨10.1016/j.jorganchem.2005.02.039⟩. ⟨hal-02617030⟩

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