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Online Meeting 바로가기 
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| Type |
Oral Presentation |
| Area |
Oral Presentation for Young Material Chemists |
| Room No. |
Room 303 (Live Streaming) |
| Time |
TUE 09:45-10:00 |
| Code |
MAT.O-4 |
| Subject |
Synthesis of polymer precursor and its conversion to diamond |
| Authors |
Sun Hwa Lee*, Jaehong Seo1, Rodney Ruoff2,*
Center for Multidimensional Carbon Materials, Institute for Basic Science, Korea
1Chemistry, Institute for Basic Science (IBS), UNIST, Korea
2Center for Multidimensional Carbon Materials / Dep, IBS CMCM / UNIST, Korea
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| Abstract |
Diamond, a crystal composed of sp3-bonded carbon, has high mechanical strength and hardness, high thermal conductivity and chemical stability, and can provide good electrical isolation or when doped can be used for electronic devices. Typical methods for making sp3-bonded carbon include by applying high temperature and high pressure with metal catalyst(s) to a precursor carbon, or chemical vapor deposition (hot wire or plasma-enhanced) of carbon to make diamond thin films. Another route that we are pursuing is by pyrolysis of organic precursors that can be converted to sp3-bonded carbon during the heating process. If it were possible to efficiently and in a straightforward way make diamond or carbon materials with high sp3 content from polymer precursors it could open new avenues for obtaining materials of desired shape. We present preparation of a hyperbranched polymer precursor for sp3-bonded carbon materials. Hyperbranched polymer precursors have been previously reported and we recently developed a new method that we find effective for making this type of polymer. The effort to convert this polymer into diamond was studies. This provides the opportunity to produce any shape of sp3-bonded carbon materials such as thin films, fibers, particles, and so on. This work was supported by IBS-R019-D1. |
| E-mail |
sunhwa.lee82@gmail.com |
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125th General Meeting of the KCS