%0 Journal Article %T Borylborazines as new precursors for boron nitride fibres %+ Laboratoire des Multimatériaux et Interfaces (LMI) %A Miele, Philippe %A Toury, Bérangère %A Cornu, David %A Bernard, Samuel %< avec comité de lecture %@ 0022-328X %J Journal of Organometallic Chemistry %I Elsevier %V 690 %N 11 %P 2809-2814 %8 2005-06 %D 2005 %R 10.1016/j.jorganchem.2005.02.039 %K Boron nitride %K BN %K Fibers %K Inorganic polymers %K PDC %Z Chemical Sciences %Z Engineering Sciences [physics]Journal articles %X 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. %G English %L hal-02617030 %U https://cnrs.hal.science/hal-02617030 %~ CNRS %~ UNIV-LYON1 %~ LMI %~ INC-CNRS %~ UDL %~ UNIV-LYON %~ TEST2-HALCNRS