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Issue 8, 2012
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Partitioned cooperative self-assembly process: taking the mesopore swelling strategy one step further for the preparation of mesocellular foams

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Abstract

This work demonstrates that the combination of recently developed partitioned cooperative self-assembly (PCSA) process with the conventional mesopore swelling strategy can take the preparation of mesocellular foams (MCFs) one step further based on cheap sodium silicate precursor. Compared with conventional method derived MCFs, such synthesized MCFs show more uniform cell size distributions without using commonly employed additives, i.e., NH4F. Furthermore, when prepared with aging at 120 °C via the PCSA process, MCFs with large uniform cells (38.3 nm) and enlarged windows up to 7.9 nm can be obtained, resembling the conventional MCFs based on TEOS/P123/NH4F system. Moreover, a simple adjustment in the order of addition of trimethylbenzene in the PCSA process produces unique bimodal meso-mesoporous MCFs with ordered normal SBA-15 regions dispersed in the matrix.

Graphical abstract: Partitioned cooperative self-assembly process: taking the mesopore swelling strategy one step further for the preparation of mesocellular foams

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Publication details

The article was received on 29 Sep 2011, accepted on 25 Nov 2011 and first published on 19 Jan 2012


Article type: Paper
DOI: 10.1039/C2JM14866H
Citation: J. Mater. Chem., 2012,22, 3462-3470
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    Partitioned cooperative self-assembly process: taking the mesopore swelling strategy one step further for the preparation of mesocellular foams

    W. Wang, W. Shan, X. Yue and H. Ru, J. Mater. Chem., 2012, 22, 3462
    DOI: 10.1039/C2JM14866H

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