Controlled evolution from multilamellar vesicles to hexagonal mesostructures through the addition of 1,3,5-trimethylbenzene

Lu, Tao, Yao, Xiangdong, Lu, Gao Qing (Max) and He, Yinghe (2009) Controlled evolution from multilamellar vesicles to hexagonal mesostructures through the addition of 1,3,5-trimethylbenzene. Journal of Colloid and Interface Science, 336 1: 368-373. doi:10.1016/j.jcis.2009.03.042


Author Lu, Tao
Yao, Xiangdong
Lu, Gao Qing (Max)
He, Yinghe
Title Controlled evolution from multilamellar vesicles to hexagonal mesostructures through the addition of 1,3,5-trimethylbenzene
Journal name Journal of Colloid and Interface Science   Check publisher's open access policy
ISSN 0021-9797
Publication date 2009-08-01
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.jcis.2009.03.042
Open Access Status
Volume 336
Issue 1
Start page 368
End page 373
Total pages 6
Editor D. T. Wasan
Place of publication USA
Publisher Academic Press
Language eng
Subject C1
100708 Nanomaterials
970109 Expanding Knowledge in Engineering
Abstract Self-assembled Porous Silica materials with adjustable structures and tunable pore sizes have important applications in catalysis, separation, and nanoscience. Organic cosolvents Such as 1,3,5-trimethylbenzene (TMB) can be used to synthesize large pore mesoporous materials. In this study, we systematically studied the influence of the time of TMB addition on the self-assembled organic/inorganic composite structures in a nonionic block copolymer templating system. By controlling the time at which TMB is added to the system. an evolution from multilamellar vesicle to ordered hexagonal mesostructure has been observed. TMB is a swell agent in our synthesis, an increase in the delay of TMB addition can kinetically reduce the amount of TMB penetrating into the hydrophobic core of embryonic mesostructure, leading to cooperatively self-assembled vesicular and mesostructured materials with decreased packing parameters. Our results have shown that, in the simple synthesis system of traditional SBA-15 material, siliceous materials with a range of structures can be rationally designed and synthesized through the addition of TMB at different times. Such materials with tunable pore structures have potential applications as microcapsules and controlled release/delivery carriers. (C) 2009 Elsevier Inc. All rights reserved.
Keyword Surfactant
MESOPOROUS SILICA NANOPARTICLES
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID LP0562609
Institutional Status UQ

 
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Created: Thu, 03 Sep 2009, 17:59:52 EST by Mr Andrew Martlew on behalf of Aust Institute for Bioengineering & Nanotechnology