2015 Fiscal Year Final Research Report
Solubilization and controlling physical properties of coal-tar-pitch as a source for carbon fiber: toward establishment of "bottom-up bulk chemistry"
| Project/Area Number |
26620185
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Chuo University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | 材料加工・処理 / 石炭ピッチ / 炭素繊維 / アルキル化 |
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| Outline of Final Research Achievements |
Fibers of coal-tar-pitch was heated under the air in an electric tube furnace to produce infusible pitch. Higher heating temperature led to higher oxygen contents in the resulting infusible pitch and the main source of the oxygen can be attributed to carbonyl functionality. The infusible pitch was further treated with alkyl Grignard reagent to form alkylated pitch, in which hydroxy groups were observed. Upon alkylation, solubility was improved and maxima of absorption and emission were shifted to the longer wavelength region. Alkylated pitch made at higher temperature exhibited higher molecular weight. Irradiation of the alkylated pitch to microwave induced dehydration reaction. The temperature for 10% weight loss of dehydrated pitch depended on the conditions to prepare the infusible pitch.
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| Free Research Field |
有機元素化学・有機金属化学・石炭
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