本論文旨在研究討論,如何快速且有效地進行中孔洞分子篩的管壁表面修飾反應以及其應用於HPLC分離多苯環物質,同時進行其穩定性測試。 在管壁修飾的方面,本論文導入新式快速表面修飾法,可於短時間且有效率的將修飾劑修飾於孔洞表面。使用此快速修飾法進行修飾反應時,修飾過程因同時有液相及氣相的修飾劑存在於表面上,因此可以大幅提升修飾效率。且不論所使用的修飾劑為何,經表面修飾後皆可提升結構穩定性。有利於作其他方面的應用。 另外應用於HPLC分離方面,經表面修飾過的靜相,皆可以成功的分離多苯環物質。且分離效果與修飾劑的碳鏈長度有相當大的影響,且與動相溶劑的極性也有所關聯。隨著所修飾上的修飾劑碳鏈長度不同,其分離效果則是碳鏈較長者有較好的表現。若使用不同靜相時,當靜相的碳鏈長度增加時,即其表面極性降低,則須將沖提動相比例調整為較為非極性,即可得到較佳的分析圖譜。其中以C18修飾的靜相分離效果較好。
A novel surface modification can be prepared through the novel methods of MCM-41 with organic silane, and modifity the mesoporous surface rapidly and perfectly. Using this methods can enlarge the carbon content on the surface because of through modification, two silane phases were existed on the surface and reacted with surface hydroxyl groups. Whatever using different kind of organic silane, all of them can improvement the hydrothermal stability of the resulting mesoporous. In addition to their applications of high performance liquid chromatography (HPLC) to separate polycyclic aromatic hydrocarbons (PAHs). The modified mesoporous can successful separate the PAHs, and the effective of separations are good. The separation effect were relative to the carbon chain length of organic silane and the polarity of mobile phase.