| 학회 |
한국고분자학회 |
| 학술대회 |
2002년 가을 (10/11 ~ 10/12, 군산대학교) |
| 권호 |
27권 2호, p.258 |
| 발표분야 |
고분자 합성 |
| 제목 |
Preparation of Polymeric Precursor for B-C-N Ceramics via Hydroboration of Borazine and B-triethynyl, N-trimethyl Borazine |
| 초록 |
Borazine or partially substituted borazine derivatives as boron nitride (BN) precursors should be strictly handled under the inert atmosphere due to high sensitivity against moisture in air. One may anticipate to synthesize the air stable borazine monomer as a precursor of BN based nanocomposite phase. At this work, we synthesized B-triethynyl N-trimethyl borazine (TEB) with 45-50% yield by Grignard reaction with B-trichloro, N-trimethyl borazine and ethynylmagnesium chloride in THF, which is the novel air stable borazine derivative. TEB was hydroborated with B-H groups of borazine at 0℃ for 30hours to form polymeric product by standard Schlenk technique. The obtained polymer was characterized by IR, TG/DTA, NMR. The pyrolyzed specimens at various temperatures were also characterized by XRD, SEM, XPS, NMR. It is most likely, at present phase, that the polymeric precursor may convert to B4C/BN or C/BN composite which is work for super high temperature materials or semiconductors with various band gap energies by controlling their atomic composition or atomic arrangement.
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| 저자 |
전종규1, Yuko Uchimaru*2, 김동표3
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| 소속 |
1충남대, 2*Research Institute for Green Technology, 3National Institute of Advanced Industrial Science and Technology |
| 키워드 |
B-C-N Ceramics; Preceramic Polymer; Boron Nitride
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| E-Mail |
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