| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9776362 | Synthetic Metals | 2005 | 4 Pages |
Abstract
Poly(N-alkyl-2-ethynylpyridinium bromides)s with different alkyl chains were synthesized in high yields by the activated polymerisation of 2-ethynylpyridine with various alkyl bromides in the absence of any additional initiator or catalyst The polymer structures were characterized by various instrumental methods such as NMR, IR, and UV-visible spectroscopies to confirm the conjugated polymer backbone system having N-alkylpyridinium moieties. The polymers were completely soluble in such organic solvents as DMF, DMSO, and DMAc. The photoluminescence spectra of poly(N-dodecyl-2-ethynylpyridinium bromide) and poly(2-ethynyl-N-octadecylpyridinium bromide) showed that the photoluminescence peaks are located at 600 and 596Â nm corresponding to the photon energy of 2.07 and 2.08Â eV, respectively.
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Authors
K.T. Lim, S.H. Jin, H.J. Lee, J.W. Park, S.Y. Kim, W.C. Lee, Y.S. Gal,