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A new series of carbazole-pyridine copolymers containing 3,3′-bicarbazolyl moiety in the main chain have been synthesized and characterized. The polymers exhibit good solubility in common organic solvents as well as good thermal stability above 300°C and the glass transition temperature above 150°C indicating their expediency in the device fabrication. The photophysical properties divulge emission...
The investigation has been made in the synthesis of azo hybrid rylene dyes. The hybridization of perylene bis-diimide with phenolic azo-dyes was carried out by the nucleophilic substitution (SNAr) reaction of tetrachloroperylene-3,4,9,10-bisdiimide 3 with phenolic azo-dyes 4a–g in basic medium. The hybrid dyes exhibited two absorption maxima λmax in the range 300–350, 426–438nm in ethanol due to presence...
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