uzuki coupling modified by adding Ag2O instead of the Na2CO3 used in the original reaction protocol, was used as a synthetic tool for the synthesis of a copolymer in which 9,9-dialkylfluorene moieties were coupled to unsubstituted poly(p-phenylenevinylene) (PPV) units. The possibility of performing the polymerisations at moderate temperatures appears to be an advantage related to the use of Ag2O. The copolymer shows a [bar M ]w of 21 000 and [bar M ]w/[bar M ]n = 2.1 and is suitable for the construction of electroluminescent devices. Monolayer organic light-emitting diodes (OLEDs) have been built which emit greenish light.
Macromol. Chem. Phys. 2002, 203,1926-1930
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