Dialkylfluorene-Oligothiophene and Dialkylfluorene-Dithienylvinylene Alternating Copolymers
- 28 June 2002
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 2002 (09) , 1136-1142
- https://doi.org/10.1055/s-2002-32523
Abstract
Well defined dialkylfluorene/oligothiophene and dialkylfluorene/dithienylvinylene alternating copolymers have been synthesized via the polycondensation of 2,7-dibromo-(9,9-dialkylfluorene) with the appropriate distannylated (oligo)thienylene component according to a Stille-type coupling reaction using tetrakis(triphenylphosphine)palladium [Pd(PPh3)4] as catalyst. The alternate incorporation of the thienylene building blocks leads to the tunability of the photoluminescent properties of the alternating copolymers. The long wavelength absorption and photoluminescence maxima of the copolymers display a subsequent bathochromic shift upon increasing the size of the (oligo)thienylene building block.Keywords
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