| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.157 |
| 발표분야 | 고분자 합성 |
| 제목 | Synthesis and Electro-Optical Properties of Poly(2-ethynylpyridinium bromide) with Dye-Functional Groups |
| 초록 | Pyridine-based acetylenic compounds such as ethynylpyridine, dipyridylacetylene, and dipyridyl-diacetylene are known to be polymerized spontaneously by the simple alkyl halide treatment without giving the N-alkyl product, which is similar to the polymer formation from 4-vinylpyridine including cation radical. We have also repoted on the preparation of various pyridine-based conjugated polymers having different functionalities. 1,4-Bis(4-benzylpyridinium)butadiyne triflate was found to be aggregated in DMF and spontaneously converted into the 1,4-addition type of polydiacetylene. A self-dopable conjugated polyelectrolytes were also prepared by the activated polymerization of 2-ethynylpyridine with the ring-opening of 2-sulfobenzoic acid cyclic anhydride or 1,4-butanesultone without any additional initiator or catalyst. Due to their extensive conjugation and ionic nature, these ionic polyacetylenes have potentials as materials for mixed ionic and electronic conductivity, energy storage devices such as batteries, permselective membrane, and light-emitting devices. Now we report the synthesis of novel ionic conjugated polymer with dye functional groups by the activated polymerization of 2-ethynylpyridine by using the dye-containing alkyl bromide and the electrophysical properties of the resulting ionic conjugated polymer. Dye-containing conjugated ionic polymer was synthesized by the direct polymerization of 2-ethynylpyridine and the dye-containing hexyl bromide without any additional initiator or catalyst under mild reaction condition. The polymer structures were characterized by various instrumental methods to have the conjugated polymer backbone system having the dye-functional substituents. X-ray diffraction analysis indicated that the present polymers are mostly amorphous. The photoluminescence spectra of this ionic conjugated polymer showed that the photoluminescence peak is located at 605 nm corresponding to the photon energy of 2.05 eV. From the CV measurements, the HOMO energy level of the polymer was calculated to be 5.21 eV. |
| 저자 | 제갈영순1, 진성호2, 이원철1, 윤남균3, 김상율4 |
| 소속 | 1경일대, 2부산대, 3국방과학(연), 4한국과학기술원 화학과 |
| 키워드 | Conjugated polymer; photoluminescence; ionic polymer; characterization |
