A polyacetylene based polyelectrolyte via non-catalyst polymerization of 2-ethynylpyridine and 3,4-dimethoxy benzoyl chloride

A new polyacetylene based polyelectrolyte, poly(N-3,4-dimethoxybenzoyl-2-ethynylpyridinium chloride), was synthesized by the direct polymerization of 2-ethynylpyridine and 3,4-dimethoxybenzoyl chloride. The polymerization successfully proceeded without any additional catalyst or initiator to give a...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2022-07, Vol.741 (1), p.24-31
Main Authors: Kim, Taehyoung, So, Jongho, Lee, Jinhee, Kim, Sang Youl, Gal, Yeong-Soon
Format: Article
Language:English
Subjects:
2-ethynylpyridine
3,4-dimethoxy benzoyl chloride
Absorption
Absorption spectra
Addition polymerization
Catalysts
Chlorides
Conjugated polymer
cyclic voltammetry
Electrochemical analysis
Electrochemistry
Energy gap
Fourier transforms
Infrared spectroscopy
NMR
NMR spectroscopy
Nuclear magnetic resonance
Optical properties
Photoluminescence
Polyacetylene
polyelectrolyte
Polyelectrolytes
Polymers
Thermogravimetric analysis
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Summary:A new polyacetylene based polyelectrolyte, poly(N-3,4-dimethoxybenzoyl-2-ethynylpyridinium chloride), was synthesized by the direct polymerization of 2-ethynylpyridine and 3,4-dimethoxybenzoyl chloride. The polymerization successfully proceeded without any additional catalyst or initiator to give a high yield of the product. The chemical structure of poly(N-3,4-dimethoxybenzoyl-2-ethynylpyridinium chloride) was confirmed using 1 H and 13 C nuclear magnetic resonance spectroscopy, as well as Fourier transform infrared spectroscopy. Further, optical properties, electrochemical properties, and thermal stabilities were investigated by cyclic voltammetry, UV-Vis absorption spectra, photoluminescence spectra, thermogravimetric analysis. Comparing UV-Visible absorption and photoluminescence spectrum, the polymer showed the band gap of 2.18 eV and photon energy of 2.58 eV.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2022.2038459