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Crosslinking of polysaccharides in room temperature ionic liquids by ionizing radiation
https://repo.qst.go.jp/records/47595
https://repo.qst.go.jp/records/47595dccfd640-855a-4656-9029-61678cc91917
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-12-19 | |||||
タイトル | ||||||
タイトル | Crosslinking of polysaccharides in room temperature ionic liquids by ionizing radiation | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
AtsushiKimura
× AtsushiKimura× Nagasawa, Naotsugu× Shimada, Akihiko× 田口, 光正× 木村 敦× 長澤 尚胤× 島田 明彦× 田口 光正 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Crosslinking of polysaccharides in room temperature ionic liquids (RTILs) by ionizing radiation were investigated by the scavenging method, fluorescent and X-ray photoelectron spectroscopy (XPS) analysis. Radiation chemical yields of hydroxyl radicals inducing the crosslinking of cellulose were estimated with phenol as a scavenger, and increased with water content in 1-ethyl-3-methylimidazolium acetate (EMI-acetate). Cellulose gel was also produced in fluorescent carboxylate-based RTILs,1,3-dibutylimidazolium acetate (DBI-acetate). Light emission from DBI-acetate in cellulose gel was observed and 20-nm redshifted at a maximum wavelength of 415 nm when excited at 323nm. Expected elements of carbon and oxygen were detected in neat cellulose by XPS,while additional nitrogen was detected in radiation-crosslinked cellulose gel produced in EMI-acetate. These results indicate that RTILs is incorporated in the cellulose gel. Chitin gel was first obtained in 1-butyl-3-methyimidazolium chloride by γ-ray irradiations,and its gel fraction increased with the dose and reached 86% at 60 kGy. |
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書誌情報 |
Radiation Physics and Chemistry 巻 124, p. 130-134, 発行日 2016-07 |
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出版者 | ||||||
出版者 | Elsevier Ltd. | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.radphyschem.2015.10.025 |