The transformation by hydrolysis/condensation of four new mesityl-(bis or tris)imidazolium-based alkoxysilane precursors into their corresponding bridged silsesquioxanes has been investigated. These precursors feature urea groups and either short or long alkylene chains, which are known to favor self-assembly. The most regular nanostructures were obtained by a combination of the tripodal precursors with C10H20 alkylene chains, as shown by powder X-ray diffraction (PXRD) analysis, independent of the reaction conditions. Tidy up! Organosilicas that feature imidazolium units tend to self-organize during the sol-gel process thanks to the self-assembly of long alkylene chains. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
|Journal||Chemistry - An Asian Journal|
|Publication status||Published - 1 Sept 2013|
- sol-gel processes