Beilstein J. Org. Chem.2011,7, 638–647, doi:10.3762/bjoc.7.75
novel class of carbazole-4-phenylpyridine co-polymers are described. The synthesis was carried out by a simple and cheaper method compared to the lengthy methods usually adopted for the preparation of carbazole–pyridinecopolymers which involve costly catalysts. Thus, two series of polymers were
. The weight average molecular masses (Mw) of the polymers were estimated by the laser light scattering (LLS) technique.
Keywords: carbazole–pyridinecopolymers; fluorescent materials; organic light emitting diode (OLED); photoluminescence spectra; UV spectra; Introduction
An immense research effort
the polymers display blue light emitting properties [21].
In view of the above literature reports, it was thought to be of considerable interest to synthesize carbazole–pyridinecopolymers by a route that involved the synthesis of the pyridine units as a polymer analogous reaction. To the best of our
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Graphical Abstract
Scheme 1:
Synthesis of the monomers. i) R–Br, 50% KOH, benzene, TBAB, 80 °C, 2 h; ii) AcCl, AlCl3, CHCl3, 0 °...