Moisture‐resistant Borazine‐Carbosilane Polymers from Triethynylborazine and Carbosilane Derivatives using Pt‐catalyzed Hydrosilylation Polymerization

Moisture‐stable borazine‐carbosilane polymers were synthesized by the platinum catalyzed hydrosilylation polymerization of B,B′,B″‐triethynyl‐N,N′,N″‐trimethylborazine and m‐ or p‐bis (dimethylsilyl)benzene. As characterized by TGA, GPC, FT‐IR, and NMR spectroscopy, these polymers were found to have excellent handling in air with no degradation, and high thermal stability under both nitrogen and air with a ceramic yield up to 70 wt% at 1000°C. These polymers facilitated the thermal forming processes for a variety of applications in non‐oxide ceramics.

Keywords:

• Preceramic polymers
• Moisture resistant
• Hydrosilylation
• SiCBN precursors

Acknowledgments

This work was supported by the Korea Science and Engineering Foundation (KOSEF) through the National Research Lab. Program funded by the Ministry of Science and Technology (No. M1040000036706J000036710). We wish to thank the Korea Basic Science Institute (KBSI) for the TEM and NMR analysis.