- 學位論文
含氟聚苯胺表面修飾三聚氰胺海綿材料之製備及其在油水分離的應用
Facile Preparation and Characterization of Fluoropolyaniline Modified Melamine Sponge for Oil /Water Separation.
摘要
本論文主要目的在製備一系列具不同親疏水表面之多孔隙性美耐皿海綿材料，並將其應用於油水分離之研究上。 首先，使用市售之三聚氰胺海綿作為基材，以過硫酸銨為氧化劑，在 1.0 M的鹽酸水溶液中進行傳統氧化聚合法，合成具有不同側鏈官能基之聚苯胺衍生物，嘗試以增加多孔隙性海綿材料之表面親油性，以利於後續運用於油水分離及吸附有機溶劑研究之分析與討論。 材料製備完成之後，首先以ATR-FTIR進行聚合在多孔隙性美耐皿海綿上之聚苯胺衍生物的結構鑑定。 再利用掃描式電子顯微鏡，觀察材料的表面型態，圖中顯示: 未經改質之三聚氰胺發泡材料表面呈平滑結構，而聚苯胺及其衍生物改質後之發泡材料之表面則呈現較粗糙表面。 在材料表面之親疏水性的測試方面，由水滴接觸角的實驗結果證實： 含氟基之聚苯胺衍生物改質之發泡海綿具有較高的疏水性，其水滴接觸角度為148°，證明其較其他聚苯胺、聚乙基苯胺及未改質之發泡材料有較佳之親油性。 最後，針對聚苯胺及其衍生物做系統性的有機溶劑吸附效能及油水分離效果評估比較，其中有機溶劑分別以烷氫類(Hexane、Octane、Dodecane、Hexadecane)，芳香族化合物(Toluene、Xylene)，氯取代烷氫(Chloroform)為研究對象，油類則以機油做吸附及油水分離測試，研究結果顯示，含氟聚苯胺改質之發泡材料具有最佳吸附及分離效果。
關鍵字
油水分離.聚苯胺.含氟聚苯胺並列摘要
In this thesis, a series of polyaniline (PANI) derivatives were polymerized onto the melamine sponge, followed by applied in oil/water separation. First of all, the PANI and its derivative ware synthesized by conventional oxidative polymerization of corresponding monomer with ammonium persulfate as oxidant in 1.0 M HCl aqueous solution. The as-prepared melamine sponge modified with PANI, polyn-ethylaniline and polyfluoroaniline can be obtained and following by characterized by FTIR spectroscopy and SEM observation. Upon the SEM observation, the pure melamine was found to reveal smooth surface. However, the melamine sponge modified with all three PANI derivatives were found to exhibit rough surface. The hydrophobic character of modified melamine sponge was determined by static contact angle of water droplets (CAWD). It should be noted that the melamine sponge modified with polyfluoroaniline was found to show the highest hydrophobic character as compared to its counterpart. Finally, melamine sponge modified with PANI derivatives were used to apply in oil/water separation and adsorption of organic solvents. It should be noted that the polyfluoroaniline was found to display better oil/water separation and adsorption of organic solvent based on a series of systematically studies.