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Synthesis and properties of poly[ N ‐(4‐ n ‐butoxybenzoyl)‐2‐ethynylpyridinium chloride]
Author(s) -
Gal YeongSoon,
Jin SungHo,
Park JongWook
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.28530
Subject(s) - polyacetylene , polyene , polymerization , polymer chemistry , substituent , counterion , ionic bonding , chloride , materials science , photoluminescence , polymer , chemistry , organic chemistry , ion , optoelectronics
Abstract We first synthesized a new ionic polyacetylene with benzoyl functional groups by the activation polymerization of 2‐ethynylpyridine with 4‐butoxybenzoyl chloride without any additional initiator or catalyst. The acetylenic triple bond of N ‐benzoyl‐2‐ethynylpyridinium chloride, formed in the first quaternarization process, was also found to be susceptible to linear polymerization. The polymer structure was characterized by various instrumental methods to give the ideal conjugated polyene backbone structure with the designed N ‐(4‐ n ‐butoxybenzoyl‐2‐ethynylpyridinium) substituent and chloride counterion. The photoluminescence spectrum showed two distinguished maximum values at 575 and 630 nm, corresponding to photon energies of 2.16 and 1.97 eV, respectively. The electrochemical properties of this ionic polyacetylene were also measured and are discussed. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008