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Issue 36, 2010
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Free-standing and bridged amine-functionalized periodic mesoporous organosilica films

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Abstract

In this work, we report the first successful synthesis of free-standing and bridged amine-functionalized PMO films grown at the air–water interface using 1,2-bis(triethoxysilyl)ethane (BTEE) and bis[(3-trimethoxysilyl)propyl]amine (BTMSPA) as silica sources and cationic alkyltrimethylammonium surfactant as the structure-directing agent. The films with thickness from 50 to 380 nm had a highly ordered periodic mesostructure with a two-dimensional (2D) hexagonal closed-packed arrangement of channels running parallel to the surface. The typical pore diameter and surface area of the film after solvent-extraction were 28.9 Å and 630 m2 g−1, respectively, when the film was synthesized at 95 °C for 8 h with the reaction composition of 1.0 BTEE : 0.05 BTMSPA : 0.57 C16TABr : 2.28 NaOH : 336 H2O. 29Si and 13C cross polarization (CP) MAS NMR spectra identified that the organic-inorganic moieties (Si–CH2–CH2Si and Si–(CH2)3NH(CH2)3Si) are the basic structural unit in the film.

Graphical abstract: Free-standing and bridged amine-functionalized periodic mesoporous organosilica films

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Publication details

The article was received on 01 May 2010, accepted on 10 Jun 2010 and first published on 06 Aug 2010


Article type: Paper
DOI: 10.1039/C0JM01278E
J. Mater. Chem., 2010,20, 7854-7858

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    Free-standing and bridged amine-functionalized periodic mesoporous organosilica films

    S. S. Park, J. H. Shin, D. Zhao and C. Ha, J. Mater. Chem., 2010, 20, 7854
    DOI: 10.1039/C0JM01278E

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