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E-Journal of Chemistry
Volume 7, Issue 4, Pages 1407-1411

Effect of Benzyltrimethylammonium Ion as a Co-directing Agent on Phase Transitions in a Nanostructure Silica/Surfactant Composite

Alireza Badiei,1 Hassan Goldooz,2 and Ghodsi Mohammadi Ziarani3

1School of Chemistry, College of Science, University of Tehran, Iran
2Department of Chemistry, Tarbiat Modares University, Tehran, Iran
3Department of Chemistry, Faculty of Science, Alzahra University, Iran

Received 31 August 2009; Revised 12 January 2010; Accepted 7 March 2010

Copyright © 2010 Hindawi Publishing Corporation. 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.


Effect of benzyltrimethylammonium ion as a co directing agent in phase transition from hexagonal to cubic and lamellar mesophases was studied in the constant pH at 130 °C. This phase transformation was carried out in constant surface charge and pore size distribution (2 nm). Influence of BTMA+ ions between head and tail of surfactant and phase transformation were observed by using the XRD and elemental analysis.