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A novel soluble viologen-based conjugated ionic copolymer, PTPA-V, was synthesized by using Suzuki coupling reaction in the presence of the tetrakis(triphenylphosphine)palladium(0) as the catalyst. Its HOMO, LUMO, EA, IP and Eg values derived from the CV data are −5.44, −3.10, 3.07, 5.70 and 2.34eV, respectively. The maximum absorption peak observed in the UV/Vis absorption spectrum of the PTPA-V...
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