Rigid-rod conjugated poly(aryleneethynylenevinylene)s were prepared from diethynyl aromatic compounds containing alkoxy groups and trans,trans-1,4-bis(β-bromoviny ])benzene by palladium-catalyzed coupling reaction. Polymerizations were carried out in THF in the presence of Pd catalyst, CuI and diethyl amine and gave a series of poly(aryleneethynylenevinylene)s with weight average molecular weight up to 56,000. The characterization of polymers by IR, NMR, UV-Vis, thermogravimetry, DSC, optical microscopy and X-ray are reported. The polymers exhibited intense fluorescence in solution (THF) and absorption band shifted to longer wavelength in films of the polymers. Polymers with long alkoxy side chains showed good solubility in THF, CH2Cl2 and CHCl3.
Reactive and Functional Polymers, 1996, 30, 341-352
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