研究生: |
陳品穎 Pin-Ying Chen |
---|---|
論文名稱: |
探討含雙吡啶和對苯乙烯單元之交替共聚物在化學感應器方面的應用 Alternating Copolymers Containing Bipyridine and Phenylenevinylene for Chemosensor Applications |
指導教授: |
游進陽
Chin-Yang Yu |
口試委員: |
施劭儒
Shao-Ju Shih 堀江正樹 Masaki Horie |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 材料科學與工程系 Department of Materials Science and Engineering |
論文出版年: | 2014 |
畢業學年度: | 102 |
語文別: | 英文 |
論文頁數: | 123 |
中文關鍵詞: | 高分子感測器 、螢光共軛高分子 、雙吡啶 、維蒂希反應 、螢光萃息 |
外文關鍵詞: | chemosensor, fluorescent conjugated polymer, bipyridine, Wittig reaction, fluorescence quenching |
相關次數: | 點閱:163 下載:0 |
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近年來隨著有機共軛高分子的蓬勃發展,高分子材料的應用越來越受到研究單位與工業界的重視,尤其是應用於高分子感測器的部分。在本論文中,主要合成了應用在高分子化學感測器的雙吡啶和對苯乙烯之交替共聚物。其雙吡啶單元具有兩個氮原子可和重金屬離子進行配位螯合機制,連接雙吡啶的單鍵因螯合而扭轉進而改變高分子共聚物之結構,接連改變了高分子光學性質,是為利用螢光變化所設計的高分子感測器。待測物如:汞、鉛、鎘、鎳、鋅、銅等重金屬離子,和高分子共聚物感測器之感測單元螯合時,會產生程度不一的螢光強度減弱和吸收波長紅位移。該高分子在溶液狀態和固體狀態下和待測物重金屬之螯合後的光學性質改變和敏銳度有不同的呈現,可更進一步探討其光學性質變化之敏感度,設計成可攜式薄膜元件,用來檢測環境過渡重金屬的存在與否。
The organic conjugated polymer has been rapidly developed in the past decade, and the application of conjugated polymer to the chemosensor has attracted considerable attention. Fluorescence conjugated polymer chemosensors for metal ions sensing which containing bipyridine units and phenylenevinylene moieties were prepared in this thesis. Nitrogen-based ligands such as 2-2’-bipyridine can effectively coordinate a variety of metal ions. The polymer conformation changed due to the coordination with metal ions, and the optical properties present something different subsequently. Addition of heavy metal ions to the fluorescent polymer solution and dipping the polymer films to heavy metal ions solution generated a different extent of fluorescent quenching and absorbance red-shift, and these could be applied to the detection of the presence of transition metal in our environment.
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