フルテキストファイル
著者
Dong Yue Research Unit of Sustainable Chemistry, University of Oulu / Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Centria University of Applied Sciences
Takeshita Tokio Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
Miyafuji Hisashi Division of Environmental Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
Nokami Toshiki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
Itoh Toshiyuki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
抄録
The cellulose-dissolving ability and some physical properties of mixed solvents of an amino acid IL, N-methyl-N-(2-methoxyethyl)pyrolidin-1-ium 2,6-diaminohexanoate ([P1ME][Lys]), with polar aprotic solvents, such as 1,3-dimethylimidazolidinone (DMI), N,N-dimethylformamide (DMF), dimethylsulfoxide (DMSO), and acetonitrile (CH3CN), have been investigated. The viscosity was significantly reduced by the increasing content of polar aprotic solvents, and a 1:1 mixture (molar ratio) of [P1ME][Lys] with DMF showed 91.5 cP which corresponded to less than 1/10 compared to that of the pure IL at 25 °C (1058 cP). The β values of the mixed solvents, which have the IL contents over 0.1, exhibited β-values similar to that of the pure IL. On the other hand, the π-value was dependent on the ratio of the IL content, and the pure IL had the highest π-value. We found that the mixed solvent of [P1ME][Lys] with DMF (1:1) easily dissolved the cellulose and the mixed solvent could be used to extract cellulose from moso bamboo (Phylostachys heterocycla) powder. The efficiency of the extraction of cellulose from the bamboo powder was significantly increased when a 1:1 mixture of the IL with a polar aprotic solvent was used as the extracting solvent at 60 °C; the extraction ratio of the 1:1 mixture (IL: DMF) reached twice that of the pure IL. We thus obtained cellulose in 18% (w/w) yield from the bamboo powder.
出版者
The Chemical Society of Japan
資料タイプ
学術雑誌論文
外部リンク
ISSN・ISBN
13480634
書誌ID
AA12026255
掲載誌名
Bulletin of the Chemical Society of Japan
最新掲載誌名
Bulletin of the Chemical Society of Japan
91
3
開始ページ
398
終了ページ
404
発行日
2017-12-28
出版者DOI
著者版フラグ
出版社版
著作権表記
© 2018 The Chemical Society of Japan
掲載情報
Yue Dong, Tokio Takeshita, Hisashi Miyafuji, Toshiki Nokami, and Toshiyuki Itoh. Direct Extraction of Polysaccharides from Moso Bamboo (Phylostachys heterocycla) Chips Using a Mixed Solvent System of an Amino Acid Ionic Liquid with Polar Aprotic Solvent. Bulletin of the Chemical Society of Japan, 2017, 91(3), pp.398-404. https://doi.org/10.1246/bcsj.20170383
部局名
工学部・工学研究科
言語
英語