Synthesis of an Ionic Polyacetylene Derivative via the Non-catalyst Polymerization of 2-Ethynylpyridine Using 4-(Bromomethyl)-7-methoxycoumarin

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A new ionic polyacetylene with coumarin moieties was synthesized via the non-catalyst polymerization of 2-ethynylpyridine using 4-bromomethyl-7-methoxycoumarin in high yield. The polymerization proceeded well in homogeneous manner to give 75% of yield without any additional catalyst or initiator. The polymer structure was identified by such various instrumental methods as NMR, IR, and UV-visible spectroscopies to have a conjugated backbone with the designed coumarin groups. The photoluminescence peak was observed at 512nm corresponding to a photon energy of 2.42eV. The cyclovoltamograms of polymer exhibited the electrochemically stable window at the -1.8 approximate to 1.50V region. Oxidation and reduction were started at 0.58 and -0.8V and had stable electrochemical property up to 30 cycles.
Publisher
TAYLOR & FRANCIS LTD
Issue Date
2015-09
Language
English
Article Type
Article
Keywords

METATHESIS POLYMERIZATION; ELECTRICAL-CONDUCTIVITY; SUBSTITUTED ACETYLENES; CONJUGATED POLYMER; OPTICAL-PROPERTIES; CYCLOPOLYMERIZATION; NANOCOMPOSITE; BROMIDE)

Citation

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.618, no.1, pp.21 - 29

ISSN
1542-1406
DOI
10.1080/15421406.2015.1075838
URI
http://hdl.handle.net/10203/205338
Appears in Collection
CH-Journal Papers(저널논문)
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