合成螺吡喃共聚合物及金屬離子檢測在半水性溶液之研究

Synthesis and Study of Spiropyran Copolymer for Metal Ion Detection in Semi-Aqueous Media

黃冠翔(Kuan-Hsiang Huang)

指導教授 ： 林宏洲

國立交通大學/工學院/材料科學與工程系所/碩士(2018年)

摘要

本論文成功設計出具有螺吡喃及四苯基乙烯的分子，結合了四苯基乙烯在高水比例溶液中聚集發光的特性，及螺吡喃照射紫外光後展現高靈敏度的開關。此分子可溶於常見的有機溶劑，如二氯甲烷、二甲基亞碸、氯仿、四氫呋喃等，也能溶於半水溶液中。當水含量大於 70%，由於四苯基乙烯的聚集誘導發光效應產生了高強度的光致發光現象，四苯基乙烯的放光波段與螺吡喃開環後的吸收部分重疊，經由紫外光照射後可使螺吡喃開環此時會有能量轉移的發生使螺吡喃的放光更強，開環後的分子可做為金屬離子感測器。我們也將此小分子感測器製作成高分子材料，希望未來能應用於感測元件的製作。

關鍵字

螺吡喃 ； 四苯基乙烯 ； 聚集誘導發光 ； 金屬離子感測器 ； 能量轉移

並列摘要

Tetraphenylethylene-spiropyran fluorescent probe for metal ion were synthesized, which combined the advantage of the aggregation induced emission of tetraphenylethylene and spiropyran as a photoswitch. These synthesized molecules are not only soluble in common organic solvents, such as dichloromethane (DCM), chloroform, dimethyl sulfoxide (DMSO), tetrahydrofuran (THF), but also soluble in semi-aqueous media. These molecules exhibited strong emission when water fraction was more than 70% due to the aggregation of TPE moiety. The aggregation induced emission wavelength of TPE partially overlapped with the absorption wavelength of open form spiropyran. After irradiated with UV light, spiropyran became open form and energy transfer happened. The open form molecules could be a metal ion sensor. We also made these small molecules into polymer. We hope this polymer can be further use in sensor materials.

並列關鍵字

Spiropyran ； tetraphenylethylene (TPE) ； aggregation induced emission (AIE) ； metal ion sensor ； energy transfer

參考文獻

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