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Acta Phys. Chim. Sin.  2006, Vol. 22 Issue (05): 548-551    DOI: 10.1016/S1872-1508(06)60020-X
Article     
Adsorption and Aggregative Structures of an Organic Cation [C18mim] of the Ionic Liquid in the Interlayer of Montmorillonite
Ding Yun-Sheng;Wang Seng-Shan;Zha Min;Wang Zhi-Gang
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 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.

Key wordsIonic liquid      Montmorillonite      Absorption      Aggregative structure     
Received: 07 November 2005      Published: 28 April 2006
Corresponding Authors: Ding Yun-Sheng     E-mail: dingys@hfut.edu.cn
Cite this article:

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. Acta Phys. Chim. Sin., 2006, 22(05): 548-551.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.1016/S1872-1508(06)60020-X     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2006/V22/I05/548

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