| 摘要: | 摘要 共軛高分子因其應用的多元性成為學界與業界的主要研究材料，就其應用在發光元件及化學感應器而言，含有-C=N- ( imine ) 結構的共軛高分子漸受重視。此類高分子除了具有一般有機物可合成出各種衍生物的特性外；其-C=N-官能基更能與多種的離子或化合物反應而改變光、電特性，因此可做為化學感應器；更有趣的是其可藉由和可發磷光的金屬形成錯合物，來提高量子產率與調變光色。本研究利用Yamamoto與Stille coupling合成出一系列具有 -C=N- 結構的聚三烷基噻吩衍生物Poly-3,8-n(4-octylthiophene-2,5-yl)-[1,10]-phenan -throline (n = bis, tetrakis ) 及其與 Cis-dichloro-bis ( 2,2’- bipyridine) ruthenium反應所做成的共軛分子-金屬錯合物。並以1H-NMR、FT-IR、MALDI-TOF、EA、GPC、TGA、UV-Vis、PL及TR-PL進行結構分析與物性測試。當高分子或其相對的單體與不同離子作用時，會有不同的光學特性變化，顯示其做為離子感應器的潛能，此外含phenanthroline的共軛分子或高分子與Ru反應所得的金屬錯合物的確可經由MLCT來調變光色，其中含Ru的Poly-3,8-bis(4-octylthioph- ene-2,5-yl)-[1,10]phenanthroline在CHCl3中的光色為非常漂亮的紅色。 Abstract Conjugated polymer have become one type of the most interesting materials for both academia and industry, due to their widely applications. For applying in light-emitting device and chemical sensor, polymers structure containing the -C=N-( imine ) group has been noticed recently. Imine group in conjugated polymers not only has the characteristic of being a functional group for preparing derivatives but also reacts with various ions or molecules to alter the photophysics and electric properties of the polymers. Furthermore, the imine group can chelate with a phosphorescent metal to enhance the quantum yield of the polymer and at the same time tune the luminescence color. A novel series of conjugated polymers comprising -C=N- group: Poly-3,8-n(4-octylthiophene-2,5-yl)-[1,10]-phenanthroline (n = bis, tetrakis) and their ruthenium complexes which also contains cis-dichloro and bis ( 2,2’- bipyridine) ligands were synthesized using Yamamoto coupling and Stille coupling. They are characterized by 1H-NMR, FT-IR, MALDI-TOF, EA, GPC, TGA, UV-vis, PL and TR-PL. It was shown that the optical properties of the imine containing monomers and polymers change when their react with varions ions, showing a great potential for application in chemical sensors. The luminescence color of the phenanthroline containing polymers has change via a MLCT (metal to ligand charge transfer) mechanism when they reacted with ruthenium complexes. Poly-3,8-bis(4-octylthiophene-2,5-yl)-[1,10] phenanthroline is a blue emitter, whereas it emits a beautiful red light in CHCl3 solution when it was chelated with a ruthenium complexes. |
