Modeling of alkyl quaternary ammonium cations intercalated into montmorillonite lattice

被引：16
|
作者：
Daoudi, El Mehdi [1 ]
Boughaleb, Yahia [1 ]
El Gaini, Layla [1 ]
Meghea, Irina [2 ]
Bakasse, Mina [1 ]
机构：
[1] Univ Chouaib Doukkali, Fac Sci, El Jadida 24000, Morocco
[2] Univ Politehn Bucuresti, Bucharest, Romania
来源：
MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 05期
关键词：
Layered compounds; Intercalation reactions; Infrared spectroscopy; Thermogravimetric analysis (TGA); X-ray diffraction; SORPTION;
D O I：
10.1016/j.materresbull.2013.01.026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The objective of this work was to study the conformation of the quaternary ammonium cations viz., octadecyl trimethyl ammonium (ODTMA), dioctadecyl dimethyl ammonium (DMDOA) and trioctadecyl methyl ammonium (TOMA) intercalated within montmorillonite. The modified montmorillonite was characterized by X-ray diffraction in small angle (SAXS), thermal analysis (TGA) and infrared spectroscopy of attenuated total reflection (ATR). The modification of organophilic montmorillonites by the three surfactants ODTMA, DMDOA and TOMA increases the basal spacing from their respective intercalated distances of 1.9 nm, 2.6 nm and 3.4 nm respectively. The increase in the spacing due to the basic organic modification was confirmed by the results of thermal analysis (TGA) and infrared spectroscopy (ATR), and also supported by theoretical calculations of longitudinal and transversal chain sizes of these alkyl quaternary ammonium cations. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1824 / 1829
页数：6
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