Issue 13, 2009
From the journal:

Journal of Materials Chemistry

Triblock copolymer templated semi-crystalline mesoporous titania films containing emulsion-induced macropores

Xiangju Meng,a   Tatsuo Kimura,*a   Tatsuki Ohjia  and  Kazumi Katoa  

* Corresponding authors

a Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Shimoshidami, Japan
E-mail: t-kimura@aist.go.jp

Abstract

Triblock copolymer templated synthesis of titania films in water (without ethanol) was demonstrated, which led to the formation of emulsions in the aqueous precursor solutions by adding hydrophobic 1,3,5-triisopropylbenzene (TIPBz). A cubic Im-3m mesoporous anatase film containing emulsion-induced macropores was prepared by spin-coating of an aqueous precursor solution of water-soluble triblock copolymer such as Pluronic F127 through the evaporation-induced self-assembly approach. The addition of TIPBz in the aqueous system also affords pinhole-like macrospaces in the mesostructured film. Expansion of the pinhole-like macrospaces during calcination would offset a tensile stress through shrinkage with the retention of the mesostructure, leading to complete crystallization of the titania framework that is important for effective adsorption of DNA molecules.

Graphical abstract: Triblock copolymer templated semi-crystalline mesoporous titania films containing emulsion-induced macropores

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Article information

DOI
https://doi.org/10.1039/B815165B
Article type
Paper
Submitted
30 Aug 2008
Accepted
05 Jan 2009
First published
11 Feb 2009

J. Mater. Chem., 2009,19, 1894-1900

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Triblock copolymer templated semi-crystalline mesoporous titania films containing emulsion-induced macropores

X. Meng, T. Kimura, T. Ohji and K. Kato, J. Mater. Chem., 2009, 19, 1894 DOI: 10.1039/B815165B

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