Macromolecular Chemistry and Physics
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
December 15, 2010
Functional Polymers: Highly Substituted Starburst Macromolecular Semiconductors
W.-Y. Lai,* D. Liu, W. Huang*
In order to combine the advantages of both uniformally structured oligomers and easily processable polymers the authors report a new strategy to synthezise π-conjugated organic semiconductors. Via a high yield microwave enhanced synthesis method for direct twelvefold Suzuki couplings a series of highly substituted twelve-armed macromolecules consisting of truxene, 9-phenylcarbazole and oligofluorene units were prepared. The resulting materials exhibited high purity, good monodispersity, and an extraordinary high molecular weight observed for a well-defined starburst conjugated molecule. Experiments to investigate the thermal, photophysical and electrochemical properties demonstrated the significance of constructing highly substituted starburst macromolecular structures on improving the amorphous properties and showed promising luminescence and electrochemical properties for the utilization of this class of materials in organic optoelectronics.
Macromol. Chem. Phys., DOI: 10.1002/macp.201000499