Influence of the structure of the onium iodide salts on the properties of modified montmorillonite

Authors

  • Sébastien Livi,

    1. Laboratoire de Chimie Moléculaire et Thio-organique, UMR CNRS 6507, INC3M, FR 3038, ENSICAEN & Université de Caen; 6 boulevard du Maréchal Juin, 14050 Caen, France
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  • Christian Dufour,

    1. Centre de Recherche sur les Ions, les Matériaux et la Photonique, UMR CNRS, CEA, ENSICAEN & Université de Caen; 6 boulevard du Maréchal Juin, 14050 Caen, France
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  • Annie-Claude Gaumont,

    1. Laboratoire de Chimie Moléculaire et Thio-organique, UMR CNRS 6507, INC3M, FR 3038, ENSICAEN & Université de Caen; 6 boulevard du Maréchal Juin, 14050 Caen, France
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  • Jocelyne Levillain,

    1. Laboratoire de Chimie Moléculaire et Thio-organique, UMR CNRS 6507, INC3M, FR 3038, ENSICAEN & Université de Caen; 6 boulevard du Maréchal Juin, 14050 Caen, France
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  • Thi-Nhàn Pham

    Corresponding author
    1. Laboratoire de Chimie Moléculaire et Thio-organique, UMR CNRS 6507, INC3M, FR 3038, ENSICAEN & Université de Caen; 6 boulevard du Maréchal Juin, 14050 Caen, France
    • Laboratoire de Chimie Moléculaire et Thio-organique, UMR CNRS 6507, INC3M, FR 3038, ENSICAEN & Université de Caen; 6 boulevard du Maréchal Juin, 14050 Caen, France
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Abstract

Dialkyl imidazoline, alkyl pyridine and alkyl quinoline containing salts have been synthesized and used as new surfactants for cationic exchange of layered silicates, such as montmorillonite (MMT) in order to evaluate their role in the formation of intercalated MMT clays. The new salts have been characterized by FTIR, 1H, 13C-NMR spectra. These compounds have been intercalated into the layers of MMT via a solution dispersion technique and the extent of the interlayer space expansion was confirmed by using wide angle X-ray diffraction and FTIR spectra. Thermogravimetry analysis shows that these salts can be used in place of ammonium salts to produce organophilic clays with higher thermal stability than commercial alkyl ammonium-treated MMT. Moreover, the results also show that the imidazolium-modified clays have a greater thermal stability compared to the quinolinium and the pyridinium-modified clay. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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