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Synthesis and Properties of Poly(2-ethynyl-N-propargylpyridinium bromide)
갈용순,이원철,귀태롱,이상섭,배장순,김봉식,장상희,진성호,Gal, Yong Sun,Lee, Won Cheol,Gwi, Tae Rong,Lee, Sang Seop,Bae, Jang Sun,Kim, Bong Sik,Jang, Sang Hui,Jin, Seong Ho Korean Chemical Society 2001 Bulletin of the Korean Chemical Society Vol.22 No.2
Ionic conjugated polymer, poly(2-ethynyl-N-propargylpyridinium bromide), was prepared by the cyclopolymerization of 2-ethynyl-N-propargylpyridinium bromide on using various transition metal catalysts, or by thermal methods without adding catalyst. The polymerization of 2-ethynyl-N-propargylpyridinium bromide catalyzed by PdCl2 gave the resulting polymers in relatively high yields. The polymer structure was characterized by various instrumental methods to confirm the conjugated polymer backbone structure carrying cumulated pyridine moiety. The polymers prepared by PdCl2 in DMSO or m-cresol were completely soluble in DMF, DMSO, and formic acid. The inherent viscosities of the resulting polymers were in the range of 0.07-0.19 dL/g. Thermal properties of the polymers were also discussed.