Richard Laine

Double-decker phenyl-silsesquioxane copolymers

Collaborators: Goodson Group (UofM), Rand Group (UofM), Rebane Group (Montana State
Sponsor: National Science Foundation (NSF)
Our objective in this work is to bridge DD silsesquioxane cage with conjugated aromatics. In recent papers, we demonstrated that stilbene derivatives of simple DD compounds exhibit properties commensurate with the existence of a LUMO in the cage center, equivalent to LUMOs found in [RStilbeneSiO1.5]8,10,12, [RStilbeneSiO1.5]7[O1.5SiMe/nPr], [RStil-beneSiO1.5]7[O0.5SiMe3]3, [RStilbeneSiO1.5]8[O0.5SiMe3]4 and [RStilbeneSiO1.5]8[OSiMe2]2. We explore here that co-polymerization of vinyl(Me)SiO(PhSiO1.5)8OSi(Me)vinyl (vinylDDvinyl) with X-Ar-X leads to polymers with photophysics behavior indicating semiconducting properties.
Highlights (Click an image for more information)
  • Diversity from Oligomeric Silsesquioxanes

    In collaboration with our industrial partner, Nippon Shokubai research done here mainly by Kunio Takahashi, we have been creating new Q8 and octaphenylsilsesquioxane (OPS) materials with functional groups that are potentially liquid crystalline, light emitting or absorbing and materials for electronic substrates with good high temperature stability and that offer good film forming properties. These materials are the future for flat panel screens and high efficiency lighting for household and industrial use.

  • Silsesquioxanes Nanoplatforms

    Organic/inorganic hybrid materials represent a new frontier in material chemistry, science, and engineering because they offer the potential to develop and tailor composite materials with control at the finest nanometer length scales. However, the basic problem is that well-defined with diverse functionality are difficult to obtain. Polyhedral oligomeric silsesquioxanes (POSS) offer one solution to this problem in that they provide the opportunity to design materials with extremely well-defined dimensions and behavior.