螢光界面活性劑的合成及其在孔洞材料上的應用

Synthesis of fluorescent surfactants and their applications in porous materials

涂熊林(Hsiung-Lin Tu)

指導教授 ： 牟中原

國立臺灣大學/理學院/化學研究所/碩士(2005年)

https://doi.org/10.6342/NTU.2005.00493

摘要

此論文的研究方向包含了三個部分。第一部分利用一連串的有機合成，得到了發光基團相同但疏水端長度不同的螢光型界面活性劑，並將之應用在中孔洞材料的製備上。發現可以進一步控制得到的複合材料之孔徑(晶格)大小，另外透過水熱與否也會對於材料的整體性質有所影響；而且由於規則的孔道提供的限制空間，我們可以搭配各種孔洞相關數據，進一步探討處於限制下的螢光行為。
　　第二部分的螢光型界面活性劑之發光基團與疏水端長度都不相同，同樣應用在中孔複合材料的合成，在螢光及孔洞性質上加以研究。上述的兩個部分除了成功的製備成粉末形式的樣品外，我們也利用旋轉塗佈方式將複合材料製備成薄膜。
　　第三部分利用了上述的螢光型界面活性劑，嘗試著利用一步驟且相對低溫的合成條件，可以直接得到具有晶相以及孔洞特性的有機無機複合材料；另外也希望藉著螢光界面活性劑的共軛系統，可以將複合材料的吸收光譜延長至可見光的範圍。

關鍵字

複合材料 ； 中孔洞 ； 螢光界面活性劑

並列摘要

Mesostructured nanocomposite with complete pore-filling of fluorescent molucules is an interesting subject since such hybrid materials would provide greater control over the molecular alignment and stability. In this thesis, we tried to prepare such nanocomposites using fluorescent surfactants as templates. In the first part, fluorescent surfactants with different hydrophobic chain length were successfully synthesized by multiple coupling reactions. After Sol-Gel process, mesostructured nanocomposites with optoelectronic properties were obtained in either powder form or as thin films by one-step synthesis. Photoluminescence (PL) behavior and physical properties of the resulting materials were fully characterized by several techniques.
　　In the second part, fluorescent surfactants with different conjugated system were synthesized and then used as templates to prepare functional nanocomposites. The resulting nanocomposites could have both the ordered mesostructure and the PL property without further treatments. In short, we successfully prepared mesostructured nanocomposites with optoelectronic property by one-step synthesis in both parts.
　　In the third part, we tried to develop a method which could prepare nanocrystalline organics/TiO2 porous composites in one step. The physical properties of the composites were characterized by the N2 adsorption-desorption isotherm, XRD, UV-Vis, PL, TGA, TEM, and SEM.

並列關鍵字

nanocomposites ； mesoporous ； fluorescent surfactants

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