The first example of a highly ordered periodic mesoporous thiophene-bridged organosilica (PMO) with large pores is reported. The synthesis was carried out under acidic conditions using a polyalkylene oxide triblock copolymer (Pluronic P123) as supramolecular structure-directing agent. Materials with pore sizes between 5 and 6 nm and specific surface areas in the range of 400−550 m 2 /g were obtained. The analysis of the TG/MS data demonstrates a relatively high thermal stability (up to 400 °C in air) of the mesoporous organosilica before a decomposition of the organic moieties occurs.
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Morell et al. (2005) studied this question.
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