| 초록 |
A new ionic polyacetylene was prepared by the activation polymerization of 2-ethynylpyridine by using 2-(bromomethyl)-5-nitrofuran in high yield without any additional initiator or catalyst. This polymerization proceeded well in homogeneous manner to give a high yield of the polymer (yield: 92 %). The activated acetylenic triple bond of N-(5-nitro-2-furanmethylene)-2-ethynylpyridinium bromide, formed at first quaternarization process, was susceptible to linear polymerization. This polymer was completely soluble in water, methanol, DMF, and DMSO, and the polymer was found to be mostly amorphous. The polymer structure was characterized by various instrumental methods to have the polyacetylene backbone structure with the designed substituent. The photoluminescence peak is located at 593 nm corresponding to a photon energy of 2.09 eV. The electrochemical properties of this ionic polyacetylene were also measured and discussed. |
