Synthesis, characterization, and fine turning of optical properties of soluble π-conjugated system with nitro-phenyl-activated 1, 3, 4-oxadiazole unit
作者： Nimisha Kaippamangalath , E. Shiju , K. Chandrasekharan , Unnikrishnan Gopalakrishnapanicker
DOI: 10.1007/S10853-015-9629-1
关键词: Formamide 、 PNPO 、 Fluorescence spectroscopy 、 Oxadiazole 、 Thermal stability 、 Solubility 、 Methyl methacrylate 、 Materials science 、 Nuclear chemistry 、 Conjugated system
摘要: A π-conjugated polymer, with nitro group in the main chain, poly(2-nitro-p-phenylene-1, 3, 4-oxadiazole) [PNPO], has been synthesized and characterized. Unlike many oxadiazole derivatives poor solubility, this product exhibited good solubility DMF, DMSO, formamide. Its characterization done by FT-IR, 1H NMR, 13C-NMR, TGA, DSC, SEM, XRD, UV–Vis spectroscopy, fluorescence Z-scan measurement. PNPO showed excellent film-forming properties upon blending 0.2 weight percentage of poly(methyl methacrylate)/poly(styrene). It observed to emit bluish green light a maximum emission wavelength at 547–554 nm region. The further reduction into nano-dimension found enhance maximum. Interestingly, exhibits antimicrobial characteristics, under examination E. coli Staphylococcus. also possess thermal stability. proposed as an ideal candidate for making active layers polymer light-emitting diodes.
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