The stability of L3 sponge phase in acidic solutions

Publication Year
2006

Type

Journal Article
Abstract

In the synthesis of the disordered lyotropic liquid crystalline L-3 sponge phase prepared with the cosurfactants cetylpyridinium chloride and hexanol, aqueous NaCl solution is used as the solvent. When this sponge phase is used as the template for L3 silica-phase processing, we replace NaCl with HCl to facilitate the acid catalysis of tetramethoxysilane in forming a templated silica gel, assuming that changing the solvent from NaCl(aq) to HCl(aq) of equivalent ionic strength does not affect the stability range of the L3 phase. In this work, we confirm that changing the pH of the solvent from neutral to acidic (with HQ has negligible effect on the L3 phase region. Equivalent ionic strength is provided by either NaCl(aq) or HCl(aq) solvent; therefore, a similar phase behavior is observed regardless of which aqueous solvent is used.

Journal
Langmuir
Volume
22
Pages
4060-4064
Date Published
04/2006
ISBN
0743-7463
Accession Number
WOS:000236989300017

Times Cited: 5Bhansali, SH Malik, AS Jarvis, JM Akartuna, I Dabbs, DM Carbeck, JD Aksay, IA