新型共軛高分子與含有皇冠醚的二苯乙烯發光團的合成與螢光感應之研究
碩士 === 國立中央大學 === 化學研究所 === 88 === The purpose of this work is to design an energy transfer-based sensory conjugated polymer with both end capped with mono-aza-15-crown-5 subsituted stilbene fluorophores. A red shift of fluorescence emission induced by Ca2+ and Y3+ has been found for both...
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| Format: | Others |
| Language: | zh-TW |
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2000
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| Online Access: | http://ndltd.ncl.edu.tw/handle/91277533927356052355 |
| Summary: | 碩士 === 國立中央大學 === 化學研究所 === 88 === The purpose of this work is to design an energy transfer-based sensory conjugated polymer with both end capped with mono-aza-15-crown-5 subsituted stilbene fluorophores. A red shift of fluorescence emission induced by Ca2+ and Y3+ has been found for both polymer 1 and polymer 2, indicating that the stilbene fluorophores have nothing to do with the fluorescence response. The increase of conjugation of the polymer backbone due to metal ion-induced conformational change is attributed to the red shift of emission. Results from similar emission studies on the model segment and its X-ray crystal structure support our proposition and also demonstrated the better sensing performance of polymer vs. monomer. In addition, attempts to form a bis(crown-stilbene)-based sensor by taking advantage of the double crown receptors for large metal ions has been shown to be unsuccessful.
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