Supramolecular Materials: Self Organized Nanostructures

摘要

We have discovered systems of molecules with the architecture of miniaturizedtriblock copolymers that self assemble into nanostructures highly regular in size and shape. In the system described here, a mushroom-shaped supramolecular structure of about 200 kilodaltons forms by crystallization of the chemically identical blocks in the system. Interestingly, the supramolecular units self organize into films containing one hundred or more layers stacked in polar arrangement. The polar supramolecular material exhibits spontaneous second harmonic generation from infrared to green photons, and a tape-like character