| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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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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