| 有机阳离子[C18mim]＋在蒙脱土层间的物理化学吸附与聚集状态* |
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| 引用本文： | 丁运生,王僧山,查敏,王志刚.有机阳离子[C18mim]＋在蒙脱土层间的物理化学吸附与聚集状态*[J].物理化学学报,2006,22(5):548-551. |
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| 作者姓名： | 丁运生 王僧山 查敏 王志刚 |
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| 作者单位： | Department of Polymer Materials and Engineering, College of Chemistry and Engineering, Hefei University of Technology,Hefei 230009, P. R. China； CAS Key Laboratory of Engineering Plastics, Joint Laboratory of Polymer Science and Materials,Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China |
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| 基金项目： | 国家高技术研究发展计划(863计划);安徽省自然科学基金;合肥工业大学校科研和教改项目;中国科学院"百人计划" |
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| 摘 要： | 咪唑基离子液体(N鄄十八烷基鄄N忆鄄甲基溴化咪唑盐C18mim]Br)中的C18mim]+可以通过离子交换反应进入蒙脱土层间.本文用TGA、FTIR和XRD 研究了C18mim]+在蒙脱土层间的物理和化学吸附及其聚集状态. 研究结果表明, 蒙脱土存在着饱和的化学吸附量, 其总吸附量随物理吸附量的增加而增加；随着C18mim]+在蒙脱土层间吸附量的增加, 其聚集态结构的有序性增加, 并伴有分子链的构象变化,导致层间距的增加.
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| 关 键 词： | 离子液体 蒙脱土 吸附 聚集态结构 |
| 收稿时间： | 2005-11-07 |
| 修稿时间： | 2005-11-072005-12-09 |
Physico Chemical Adsorption and Aggregative Structures of the Organic Cation [C18mim]+ in the Interlayer of Montmorillonite |
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| DING Yun-Sheng,WANG Seng-Shan,ZHA Min,WANG Zhi-Gang.Physico Chemical Adsorption and Aggregative Structures of the Organic Cation [C18mim]+ in the Interlayer of Montmorillonite[J].Acta Physico-Chimica Sinica,2006,22(5):548-551. |
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| Authors: | DING Yun-Sheng WANG Seng-Shan ZHA Min WANG Zhi-Gang |
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| Institution: | Department of Polymer Materials and Engineering, College of Chemistry and Engineering, Hefei University of Technology,Hefei 230009, P. R. China； CAS Key Laboratory of Engineering Plastics, Joint Laboratory of Polymer Science and Materials,Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China |
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| Abstract: | An organic cation C18mim] formed from C18mim]Br, one type of ionic liquids, can go into the interlayer of sodium montmorillonite(MMT) through the ion-exchanging reaction. The adsorption state, the adsorption amount, and the aggregative structure of C18mim] in the interlayer of MMT have been investigated by thermogravimetric analysis (TGA), wide-angle X-ray diffraction(XRD), and Fourier transform infrared spectroscopy(FTIR). The results indicated that there is a maximum chemical adsorption of C18mim] in the interlayer of MMT, but the total amount of adsorbed C18mim] in the interlayer of MMT increases with the physical adsorption of C18mim] . With the increasing amount of adsorbed C18mim] in the interlayer of MMT, the aggregative structures of C18mim] become more ordered, leading to an obvious increase of the interlayer distance of MMT. |
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| Keywords: | Ionic liquid Montmorillonite Absorption Aggregative structure |
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