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Int. J. Mol. Sci. 2012, 13(10), 13726-13736; doi:10.3390/ijms131013726
Article

Synthesis and Characterization of Mesoporous Silica Functionalized with Calix[4]arene Derivatives

1,2,* , 1
 and
1
1 Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia 2 Department of Chemistry, Faculty of Science, Taibah University, Almadina Almonwara 30001, Saudi Arabia
* Author to whom correspondence should be addressed.
Received: 20 July 2012 / Revised: 12 October 2012 / Accepted: 12 October 2012 / Published: 23 October 2012
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Abstract

This work reports a new method to covalently attach calix[4]arene derivatives onto MCM-41, using a diisocyanate as a linker. The modified mesoporous silicates were characterized by fourier transform infrared spectroscopy (FTIR), thermal analysis (TGA) and elemental analysis. The FTIR spectra and TGA analysis verified that the calix[4]arene derivates are covalently attached to the mesoporous silica. The preservation of the MCM-41 channel system was checked by X-ray diffraction and nitrogen adsorption analysis.
Keywords: MCM-41; calix[4]arene; p-Sulfonatocalix[4]arene; para-tert-butyl calix[4]arene MCM-41; calix[4]arene; p-Sulfonatocalix[4]arene; para-tert-butyl calix[4]arene
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Alahmadi, S.M.; Mohamad, S.; Maah, M.J. Synthesis and Characterization of Mesoporous Silica Functionalized with Calix[4]arene Derivatives. Int. J. Mol. Sci. 2012, 13, 13726-13736.

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