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This is a Polyhedral Oligomeric Silsesquioxane and is the molecule at the core of my research interests. It is a cubic molecule (although other shapes and sizes do exist), a cage constructed of silicon and oxygen atoms. We can carry out reactions on the groups at each corner to synthesize larger molecules such as dendrimers and hyperbranched polymers. Polyhedral Oligomeric Silsesquioxane is often abbreviated to PSS or POSS, hence the title of this site, Endless POSSibilities.
This is a dendrimer, a snowflake like polymer based on the silsesquioxane core. Each corner of the silsesquioxane has become the root of a branch, based on poly(amido amine) chemistry. While these molecules look very complex, the synthetic routes are high yielding.