最近聚合物在磷光有機發光元件中被廣泛研究，這是由於它具有高效率。本研究主要著重新的咔唑為基礎的乙烯共聚物在特定濃度的合成，鑑定和研究的光學和電化學性能。
側鏈含有咔唑衍生物或沒有芴鏈段和/或側鏈含有苯並噻二唑衍生物兩個新的乙烯共聚物poly(9-(4-vinylphenyl)-9H-carbazole-co-4-phenyl-7-(4-vinylphenyl)benzo[c][1,2,5] thiadiazole) (P1) 和poly(9-(4-vinylphenyl)-9H-carbazole-co-3,6-bis(9,9-dip-tolyl-9H-fluoren-2-yl)-9-(4-vinylphenyl)-9H-carbazole) (P2) 經由自由基聚合反應來合成。經由1H NMR，FT-IR，GPC，和元素分析 (EA) 來鑑定化學結構。利用TGA和DSC來量測它們的熱性質。分別以UV-Vis，PL光譜和循環伏安來進行光學和電化學性質的研究。第3章是有關於P1的鑑定，以及光學和電化學性質的探討。P1有良好的熱穩定性，它的玻璃化轉變溫度（Tg）是132oC 和分解溫度（Td）（5％重量損失）是396oC。P1的PL放光光譜值在499 nm處的位置完全與苯並噻二唑衍生物的放光光譜重疊。三重態能量為2.65 eV和它的HOMO， LUMO能階分別為 -5.59，-3.06 eV。這種聚合物可應用於作為東道主材料綠色或紅色有機電。第4章有關於P2的鑑定，以及光學和電化學性質的探討。P2有良好的熱穩定性，它的玻璃化轉變溫度（Tg）是 130oC和Td是401oC。P2的PL光譜位置和單體含芴在385和402 nm相似。這種聚合物能表現出高的三重態（2.46 eV）和高HOMO能階（-5.28 eV），具有應用於主體磷光聚合物材料的特點。此外，合理的HOMO能階（由於含有側鏈咔唑基團）也使得它是適合的電洞傳送材料。

Phosphorescent organic light-emitting devices based on polymers have recently been widely studied owing to its high efficiency. The research in this essay also focuses on this topic with the particular concentration on the synthesis, characterization and investigation of opto-electronic properties of the new carbazole-based vinyl copolymers.
Two new vinyl copolymers poly(9-(4-vinylphenyl)-9H-carbazole-co-4-phenyl-7-(4-vinylphenyl)benzo[c][1,2,5]thiadiazole) (P1) and poly(9-(4-vinylphenyl)-9H-carbazole-co-3,6-bis(9,9-dip-tolyl-9H-fluoren-2-yl)-9-(4-vinylphenyl)-9H-carbazole) (P2) containing pendant carbabazole derivatives with or without fluorene segments and/or pendant benzothiadiazole derivative have been synthesized by free radical polymerization reaction and characterized by 1H NMR, FT-IR, GPC and elemental analysis (EA). Thermal properties were determined by TGA and DSC. Optical and electrochemical properties were investigated by UV-Vis, PL spectroscopy and cyclic voltammetry. Chapter 3 presents the characterization, optical and electrochemical properties of P1. The P1 exhibited good thermal stability with glass transition temperature (Tg) at 132oC and decomposition temperature (Td) (at 5% weight loss) at 396oC. The PL spectrum of P1 showed emission band peaking at position 499 nm which completely overlap with emission band of benzothiadiazole derivative. The high triplet energy 2.65 eV and reasonable HOMO, LUMO energy levels -5.59, -3.06 eV suggest this polymer can be applied as the host material for green or red electrophosphorescence. Chapter 4 presents the characterization, optical and electrochemical properties of P2. The P2 also revealed good thermal stability with Tg at 130oC and Td at 401oC. The PL spectrum of P2 displayed at similar position as monomer containing fluorene at 385 and 402 nm. This polymer demonstrated high triplet energy (2.46 eV) and high HOMO energy level (-5.28 eV), which attain characteristics to be a host material for phosphorescent polymer light-emitting devices. Besides, the reasonable HOMO energy level (due to the presence of pendant carbazole units) also makes it a promising candidate of hole-transporting layer.

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