|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
コールタールピッチから得られたメソカーボンマイクロビーズの13C-NMRおよびESRによる化学構造の検討
| Title: | コールタールピッチから得られたメソカーボンマイクロビーズの13C-NMRおよびESRによる化学構造の検討 |
| Other Titles: | Study on Chemical Structure of Meso-Carbon Microbeads Made from Coal-Tar Pitches by 13C-NMR and ESR Methods |
| Authors: | 山口, 千春1 Browse this author | | 松好, 弘明2 Browse this author | | 徳満, 勝久3 Browse this author | | 馬場, 澄子4 Browse this author | | 熊谷, 治夫5 Browse this author →KAKEN DB | | 真田, 雄三6 Browse this author |
| Authors(alt): | Yamaguchi, Chiharu1 | | Matsuyoshi, Hiroaki2 | | Tokumitsu, Katsuhisa3 | | Baba, Sumiko4 | | Kumagai, Haruo5 | | Sanada, Yuzo6 |
| Keywords: | Meso-carbon microbeads | | Coal-tar pitch | | NMR | | ESR |
| Issue Date: | 17-Oct-1994 |
| Publisher: | 炭素材料学会 |
| Journal Title: | 炭素 |
| Journal Title(alt): | TANSO |
| Volume: | 1994 |
| Issue: | 164 |
| Start Page: | 193 |
| End Page: | 198 |
| Publisher DOI: | 10.7209/tanso.1994.193 |
| Abstract: | The 13C-NMR (Nuclear Magnetic Resonance) and ESR (Electron Spin Resonance) analyses were applied to four kinds of coal-tar pitches as raw material, and to the fractions of toluene insolublequinoline soluble (β-resin) and quinoline insoluble (QI) which were components of meso-carbon microbeads (MCMB) prepared from the heat-treatment of raw materials.
It should be noted that QI had higher average molecular weight and more developed aromatic ring structure than β-resin, while QI and β-resin had almost the same aromaticity. Therefore, it was plausible that the change from raw material to β-resin was mainly caused by the increase of aromaticity, while the change from β-resin to QI was mainly caused by the development of aromatic ring structure. Furthermore, the content of bridged carbon locating between two aromatic rings was markedly reduced by the heat-treatment. It was found out that the yield and development of aromatic ring structure of MCMB were positively correlated with the average molecular weight and the content of bridged carbon of raw material as well. |
| Rights: | 著作権は炭素材料学会にある、利用は著作権の範囲内に限られる |
| Relation: | https://www.jstage.jst.go.jp/article/tanso1949/1994/164/1994_164_193/_article/-char/ja |
| Type: | article |
| URI: | http://hdl.handle.net/2115/79397 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 熊谷 治夫
|
