| Budget Amount *help |
¥40,430,000 (Direct Cost: ¥31,100,000、Indirect Cost: ¥9,330,000)
Fiscal Year 2018: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2017: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2016: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2015: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2014: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
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| Outline of Final Research Achievements |
We have developed ionic liquids that dissolved cellulose or lignin; 1-methyl-1-(2-methoxyethyl)pyrrolidinium([P1ME]) 2,5-diaminohexanoate ([P1ME][Lys]) easily dissolved both lignin and cellulose. On the other hand, 1-methyl-1-(2-methoxyethyl)pyrrolidinium acetate ([P1ME][OAc]) dissolved cellulose selectively. Further, we accomplished strong acid or strong base-catalyst free acylation of cellulose using [P1ME][OAc].It was found that the cellulose solution of [P1ME][OAc] was treated with 2,2,2-trifluoroethyl benzoyl ester at 80°C to afford the corresponding cellulose benzoate with a perfect degree of substitution in excellent yield.
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