Large pore periodic mesoporous organosilicas (PMOs) with p-xylylene bridging groups were synthesized using Pluronic F127 as surfactant under moderate acidic conditions and low temperature (&lt; 15 °C). The organosilicas had large pore diameter around 15 nm with weakly ordered face-centered cubic structure. Adjustment in the amount of organosilica precursor to Pluronic F127 surfactant led to synthesis of highly ordered face-centered cubic structure with closed mesopores and loosely aggregated hollow nanospheres. The resulting materials were characterized by nitrogen adsorption, small angle X-ray scattering, transmission electron microscopy, <sup>29</sup>Si and <sup>13</sup>C CP MAS solid state NMR.

Synthesis of periodic mesoporous organosilicas and related hollow nanostructures

255th National Meeting (2018)

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