Nanoscale particles derived from silsesquioxane core structures are important nanomaterials that can be applied in electronic devices. As the surface silsesquioxane core structure can be easily functionalized with various semiconduting organic moleculaes, there has been a great effort to use them as emissive layers for optoelectronic devices. However, There has been a significant challenge assembling nanoscale to microscale particles into a well ordered microstructures. Here we describe a novel  method to assemble microparticles into three-dimensional micro-colloids using organic-inorganic hybrid particles through strong H-bonding interactions. To do this, a series of reactive group functionalized silsesquioxane microparticles were prepared by direct hydrolysis and co-condensation of their respective silane precursors. Particle sizes were controlled upon adjusting the molar ratios of organotrialkoxy silane to the base concentrations. These resulting microparticles with reactive amine groups and benzyl chlorides groups are found to be more advantageous for the self-assembly in a variety of polymer matrices due to the formation of strong H-bonding interaction of amine group with actice sites of the polymer substrate.

Colloidal self-assembly of multi-fluorescent hybrid silsesquioxane particles

251st National Meeting (2016)

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