Tuesday, October 5, 2010, 11:00 am — Bldg. 735 - Conf Rm A
A novel class of amphiphilic conjugated block copolymers containing poly(3octylthiophene) and poly(ethylene oxide) (POT-b-PEO) has been synthesized. Remarkably, their photoluminescent properties can be tuned from blue to red. POT-b-PEO self-assembles into various supramolecular assemblies due to its amphiphilicity. The self-assembly structure can be readily controlled by altering the solvent composition or by other external stimuli. The photoluminescent property changes are due to the morphological transitions of the block copolymer assemblies. A wide range of photoluminescent colors can be obtained without altering molecular structure, demonstrating that the strategy can be used to manipulate light emission properties of conjugated polymers in a highly controllable manner.
Hosted by: Barney Grubbs
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