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Citation: Ding Yun-Sheng, Wang Seng-Shan, Zha Min, Wang Zhi-Gang. Adsorption and Aggregative Structures of an Organic Cation [C₁₈mim]^＋ of the Ionic Liquid in the Interlayer of Montmorillonite[J]. Acta Physico-Chimica Sinica, ;2006, 22(05): 548-551. doi: 10.1016/S1872-1508(06)60020-X shu

Adsorption and Aggregative Structures of an Organic Cation [C₁₈mim]^＋ of the Ionic Liquid in the Interlayer of Montmorillonite

1.
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

Received Date: 7 November 2005
Available Online: 28 April 2006

An organic cation [C18mim]+ formed from [C18mim]Br, one type of ionic liquids, can 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 ofMMThave been investigated by thermogravimetric analysis (TGA), wide-angle X-ray diffraction (XRD), and Fourier transforminfrared 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.
- Ionic liquid;Montmorillonite;Absorption;Aggregative structure
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Adsorption and Aggregative Structures of an Organic Cation [C18mim]＋ of the Ionic Liquid in the Interlayer of Montmorillonite

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通讯作者: 陈斌, bchen63@163.com

Adsorption and Aggregative Structures of an Organic Cation [C₁₈mim]^＋ of the Ionic Liquid in the Interlayer of Montmorillonite