Effect of ionic liquids on the aggregation behavior of PEO-PPO-PEO block copolymers in aqueous solution
文献类型：期刊论文
| 作者 | Zheng, Lily; Guo, Chen; Wang, Jing; Liang, Xiangfeng; Chen, Shu; Ma, Junhe; Yang, Bin; Jiang, Yangyang; Liu, Huizhou |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2007-02-15 |
| 卷号 | 111期号:6页码:1327-1333 |
| 关键词 | differential scanning calorimetry triblock copolymer salt micellization 1-butyl-3-methylimidazolium extraction complexes precursor poloxamer chloride |
| ISSN号 | 1520-6106 |
| 其他题名 | J. Phys. Chem. B |
| 中文摘要 | Effect of 1-butyl-3-methyl-imidazolium bromide (BmimBr) on the aggregation behavior of PEO-PPO-PEO Pluronic P104 aqueous solution was studied by Fourier transform infrared (FTIR) spectroscopy, freeze fracture transmission electron microscopy (FF-TEM), dynamic light scattering (DLS), and NMR spectroscopy. When the BmimBr concentration was below 1.232 mol/L, the critical micelle temperature (CMT) of Pluronic P104 remained constant, while the size of micelles increased with increasing the BmimBr concentration; above this concentration, the CMT of Pluronic P104 decreased abruptly, and bigger clusters of BmimBr were formed. The selective nuclear Overhauser effect (NOE) spectrum indicates that the PO block of the P104 interacts with the butyl group of the Bmim(+) cation by hydrophobic interaction. It suggests that when the concentration of BmimBr is below 1.232 mol/L, there are P104 micelles in the aqueous solution with BmimBr embedding to the micellar core, while above this concentration, P104 micelles and BmimBr clusters coexist in the system. |
| 英文摘要 | Effect of 1-butyl-3-methyl-imidazolium bromide (BmimBr) on the aggregation behavior of PEO-PPO-PEO Pluronic P104 aqueous solution was studied by Fourier transform infrared (FTIR) spectroscopy, freeze fracture transmission electron microscopy (FF-TEM), dynamic light scattering (DLS), and NMR spectroscopy. When the BmimBr concentration was below 1.232 mol/L, the critical micelle temperature (CMT) of Pluronic P104 remained constant, while the size of micelles increased with increasing the BmimBr concentration; above this concentration, the CMT of Pluronic P104 decreased abruptly, and bigger clusters of BmimBr were formed. The selective nuclear Overhauser effect (NOE) spectrum indicates that the PO block of the P104 interacts with the butyl group of the Bmim(+) cation by hydrophobic interaction. It suggests that when the concentration of BmimBr is below 1.232 mol/L, there are P104 micelles in the aqueous solution with BmimBr embedding to the micellar core, while above this concentration, P104 micelles and BmimBr clusters coexist in the system. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | DIFFERENTIAL SCANNING CALORIMETRY ; TRIBLOCK COPOLYMER ; SALT ; MICELLIZATION ; 1-BUTYL-3-METHYLIMIDAZOLIUM ; EXTRACTION ; COMPLEXES ; PRECURSOR ; POLOXAMER ; CHLORIDE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000244039700012 |
| 公开日期 | 2013-10-15 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3532]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Lab Separat Sci & Engn, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Lily,Guo, Chen,Wang, Jing,et al. Effect of ionic liquids on the aggregation behavior of PEO-PPO-PEO block copolymers in aqueous solution[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2007,111(6):1327-1333. |
| APA | Zheng, Lily.,Guo, Chen.,Wang, Jing.,Liang, Xiangfeng.,Chen, Shu.,...&Liu, Huizhou.(2007).Effect of ionic liquids on the aggregation behavior of PEO-PPO-PEO block copolymers in aqueous solution.JOURNAL OF PHYSICAL CHEMISTRY B,111(6),1327-1333. |
| MLA | Zheng, Lily,et al."Effect of ionic liquids on the aggregation behavior of PEO-PPO-PEO block copolymers in aqueous solution".JOURNAL OF PHYSICAL CHEMISTRY B 111.6(2007):1327-1333. |
入库方式： OAI收割
来源：过程工程研究所
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