研究生: |
葉永城 Young-Cheng Yeh |
---|---|
論文名稱: |
層狀鈣矽酸鹽gyrolite及reyerite之矽烷接枝反應 The silylation reaction of two layered calcium silicates: gyrolite and reyerite |
指導教授: |
王素蘭
Sue-Lein Wang |
口試委員: | |
學位類別: |
碩士 Master |
系所名稱: |
理學院 - 化學系 Department of Chemistry |
論文出版年: | 2004 |
畢業學年度: | 92 |
語文別: | 中文 |
論文頁數: | 80 |
中文關鍵詞: | 層狀鈣矽酸鹽 、水熱合成 、矽烷化反應 |
外文關鍵詞: | layered calcium silicates, hydrothermal, silylation |
相關次數: | 點閱:1 下載:0 |
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本研究以水熱合成法製備具2-D結構之鈣矽酸鹽gyrolite(Ca16Si24O60(OH)8.13H2O)及reyerite(KCa14Si24O60(OH)5.3H2O),再使用矽烷化反應(silylation)針對上述兩種層狀鈣矽酸鹽進行有機修飾(organic modification)的工作,反應所選用的矽烷接枝劑有trimethylchlorosilane, phenyldimethylchlorosilanes, n-decyldimethylchlorosilane and n-octyldimethylchlorosilane。不同於文獻上需先與長碳鏈有機銨鹽(alkylammonium)進行離子交換作為中間產物,本文的矽烷化反應為將層狀矽酸鹽混合酸、矽烷接枝劑(silane grafting reagents)及DMF為溶劑的環境下直接進行矽酸鹽的矽烷接枝反應。反應物及產物利用PXRD、29Si Solid State NMR、TGA及元素分析等進行鑑定分析;藉由29Si Solid State NMR及TGA進行定量分析探討;BET吸附面積多寡則受到矽烷接枝劑在層間排列情形所控制,與接枝率好壞無直接相關。
綜合以上的結果,可以估測出矽烷接枝劑在層間所含的量以及排列情形,而所得產物應用在層狀矽酸鹽/高分子奈米複合材料時,此研究成果將有助於瞭解兩者之間的作用力,進而設計出具有較優良物理性質之新穎的複合材料。
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