Radiation effects on microcrystalline cellulose in 1-butyl-3-methylimidazolium chloride ionic liquid
文献类型：期刊论文
| 作者 | Hao, Yan1,2; Peng, Jing1; Ao, Yinyong1; Li, Jiuqiang1; Zhai, Maolin1 |
| 刊名 | CARBOHYDRATE POLYMERS
 |
| 出版日期 | 2012-11-06 |
| 卷号 | 90期号:4页码:1629-1633 |
| 关键词 | Gamma-ray Irradiation Radiation Degradation Kinetic Microcrystalline Cellulose Ionic Liquids N-methylmorpholine-n-oxide |
| ISSN号 | 0144-8617 |
| DOI | 10.1016/j.carbpol.2012.07.042 |
| 英文摘要 | The radiation processing of cellulose in ionic liquids (ILs) demands a comprehensive knowledge of radiation effects on cellulose in ILs. Herein, gamma radiation-induced degradation kinetics of microcrystalline cellulose (MCC) in 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) was studied by viscometry. The intrinsic viscosity of MCC in [Bmim]Cl decreased slightly with increasing dose: while chemical structure and crystalline state of cellulose has no obvious change up to 300 kGy. The radiation degradation rate constant (k) of MCC in [Bmim]Cl was 2.60 x 10(-7)/kGy, lower than that of solid cellulose, but higher than that in N-methylmorpholine-N-oxide (NMMO) solvent. Furthermore, k value decreased to 1.12 x 10(-7)/kGy in dimethyl sulfoxide (DMSO)/[Bmim]Cl system due to the free radicals scavenging of DMSO. The radicals generated during irradiation play main role in the radiation degradation of MCC in [Bmim]Cl. This work provides a new way to control the average molecular weight of cellulose by radiation-induced degradation of cellulose in ILs. (c) 2012 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000309331000032 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49855]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Peng, Jing |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, Dept Appl Chem, Key Lab Polymer Chem & Phys,Minist Educ,BNLMS, Beijing 100871, Peoples R China 2.Inner Mongolia Univ Sci & Technol, Sch Chem & Chem Engn, Baotou 014010, Inner Mongolia, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Yan,Peng, Jing,Ao, Yinyong,et al. Radiation effects on microcrystalline cellulose in 1-butyl-3-methylimidazolium chloride ionic liquid[J]. CARBOHYDRATE POLYMERS,2012,90(4):1629-1633. |
| APA | Hao, Yan,Peng, Jing,Ao, Yinyong,Li, Jiuqiang,&Zhai, Maolin.(2012).Radiation effects on microcrystalline cellulose in 1-butyl-3-methylimidazolium chloride ionic liquid.CARBOHYDRATE POLYMERS,90(4),1629-1633. |
| MLA | Hao, Yan,et al."Radiation effects on microcrystalline cellulose in 1-butyl-3-methylimidazolium chloride ionic liquid".CARBOHYDRATE POLYMERS 90.4(2012):1629-1633. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。