| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 고분자 합성 |
| 제목 | Synthesis and Characterization of Self-Doped Ionic Conjugated Polymer by Ring-Opening of Cyclic Compound |
| 초록 | For more than 30 years, electric conduction in organic solids has been one of the most fascinating topics for synthetic chemists and solid-state physics. Various polyacetylene-based conjugated polymers have been prepared by the simple linear polymerization of the corresponding acetylene monomers by various catalyst systems. 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 a very facile synthetic method of novel self-dopable ionic conjugated polymer, poly(2-ethynylpyridinium-N-benzoylsulfonate) (PEPBS), by the activated polymerization of 2-ethynylpyridine with the ring-opening of 2-sulfobenzoic acid cyclic anhydride. and light-emitting devices. PEPBS was easily prepared by the activated polymerization of 2-ethynylpyridine with the ring-opening of 2-sulfobenzoic acid cyclic anhydride without any additional initiator or catalyst in DMF. As the reaction proceeded, the color of reaction mixture changed from the light brown of the initial mixture into dark red. After the polymerization time, the resulting polymer solution was precipitated into a large excess of ethyl ether. This polymerization also proceeded well in such organic solvents as DMF, DMSO, and NMP. The polymerization mechanism was assumed to include the initial ring-opening of 2-sulfobenzoic acid cyclic anhydride by the attack at carbonyl carbon with the non-bonding electron pair of 2-ethynylpyridine and the propagation step (linear polymerization) of the activated ethynylpyridines by the sulfonate anion of N-benzoylsulfonate. |
| 저자 | 제갈영순1, 이원철1, 진성호2, 박종욱3, 심상연4, 임권택5, 김봉식6 |
| 소속 | 1경일대, 2부산대, 3카톨릭대, 4강릉대, 5부경대, 6영남대 |
| 키워드 | Conjugated polymer; polyacetylene; ring-opening; 2-ethynylpyridine |
