二氧化矽粒子之中孔洞性質在聚苯乙烯/二氧化矽奈米複合材料之效應

Effect of Mesoporousity of Silica Particles on the Physical Properties of Polystyrene/Silica Nanocomposite Materials

邱文玲(Wen-Ling Chiu)

指導教授 ： 葉瑞銘

中原大學/理學院/化學研究所/碩士(2007年)

https://doi.org/10.6840/cycu200700585

摘要

本論文係以溶膠-凝膠（Sol-Gel）法來製備具有多孔洞性與無孔洞性材料。以Tetraethoxysilane（TEOS）為前驅物，3-(trimethoxy silyl)propyl methacrylate)（MSMA）為修飾劑，Dibenzoyl-L-tartaric acid （DBTA）作為孔洞形成劑，沿用了非界面活性劑模版法製備無機中孔洞材料的方法，進一步延伸到有機高分子為基材的孔洞材料。最後利用索萃的技巧將水溶性的DBTA分子從中孔洞材料中移除便可以得到一多孔性的孔洞材料。在實驗中我們採用聚苯乙烯當作孔洞材料的基材，分別以不同含量的孔洞性及無孔洞性的二氧化矽與聚苯乙烯形成有機-無機奈米複合材料。另外，在材料結構鑑定方面，除了用穿透電子顯微鏡（TEM）、掃描式電子顯微鏡（SEM）與氮氣吸/脫附儀觀察其孔洞的型態與特性之外，材料的熱性質、介電性質、光學性質等在本論文中皆有一系列的探討。

關鍵字

中孔洞 ； 聚苯乙烯 ； 二氧化矽 ； 模板 ； 溶膠-凝膠

並列摘要

In this thesis, we have synthesis mesoporous and non-porous materials based on Sol-Gel technique. A series of organo-modify mesoporous materials have been synthesized through nonsurfactant templated sol-gel route of tetraethyl orthosilicate（TEOS）and 3-(trimethoxy silyl)propyl methacrylate)（MSMA） that as a modify agent and Dibenzoyl-L-tartaric acid（DBTA）as a templates. After removed the DBTA by extracted exhaustively, the organic modify mesoporous materials were obtained. In the experiment, a series of polystyrene/silica nanocomposite materials by the different content synthesis mesoporous and non-porous materials forms the organic-inorganic hybrid materials. The porous materials that prepared as described were then characterized by Transmission Electron Microscopy （TEM）and Scanning Electron Microscopy（SEM）, Nitrogen adsorption/desorption isotherms, Accelerated Surface Area and Porosimetry System. Besides, effects of pore structures on thermal properties, dielectric property, optical clarity, and surface morphology of as-prepared multi-porous materials, were also investigated by the dielectric analyzer and UV-visible transmission spectra, respectively.

並列關鍵字

Polystyrene ； silica ； templates ； Mesoporous ； Sol-Gel

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