An ionic polyacetylene from the non-catalyst polymerization of 2-ethynylpyridine using 1,6-dibromohexane: Synthesis and characterization

作者：Gal Yeong Soon^*; Jin Sung Ho; Park Jong Wook; Son Tae Kwan; Lim Kwon Taek

来源：Molecular Crystals and Liquid Crystals, 2016, 636(1): 80-87.

DOI：10.1080/15421406.2016.1201382

• polyacetylene
• 2-ethynylpyridine
• 1
• 6-dibromohexane
• non-catalyst polymerization
• cyclic voltammogram

An 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 489nm and band gap was 2.44eV. The photoluminescence spectrum of polymer showed the maximum peak at 550nm. Overall redox current shape and values were very stable in the range of -1.5V to 1.5V under up to 50 cylcles. Oxidation and reduction were started at 0.35 and -0.6V.

• 出版日期2016