Abstract
ABSTRACTAn ionic polyacetylene was prepared via the non-catalyst polymerization of 2-ethynylpyridine using 1,6-dibromohexane. The polymerization proceeded in homogeneous manner to give a high yield of polymer (88%). The polymer structure was characterized by such instrumental methods as IR, NMR, and UV-visible spectroscopies to have the conjugated polymer backbone with the designed bromohexylpyridinium substituents. The absorption spectrum exhibits several absorption peaks such as 289, 330, 387, and 489 nm and band gap was 2.44 eV. The photoluminescence spectrum of polymer showed the maximum peak at 550 nm. Overall redox current shape and values were very stable in the range of −1.5 V to 1.5 V under up to 50 cylcles. Oxidation and reduction were started at 0.35 and −0.6 V.
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