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      Silica表面과 Silane 및 Alcohol과의 反應 = Reactions of Silanes and Alcohols with Silica Surfaces

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      https://www.riss.kr/link?id=A19660316

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      The surface hydroxyl groups of silica have been modified by the treatment of chlorosilanes and alcohols. And the hydrophobic properties of the silica have been studied by IR spectra and water adsorption.
      Alcohol modified silica exhibited OH adsorption band shift from 3750㎝^-1 to lower frequency along with the increment of alkyl absorption bands at 2985∼2860㎝^-1. Similar results were observed with silane treatment, showing most optimum treatment temperature at about 200℃.
      The adsorption tendency of treated silica toward water were significantly less than the untreated silica in the decreasing order of monomethylsilane < dimethylsilane < trimethylsilane. Adsorption properties of ethyl alcohol treated silica were almost equivalent with the ethylsilane treated silica, showing similar surface structure they might have.
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      The surface hydroxyl groups of silica have been modified by the treatment of chlorosilanes and alcohols. And the hydrophobic properties of the silica have been studied by IR spectra and water adsorption. Alcohol modified silica exhibited OH adsorptio...

      The surface hydroxyl groups of silica have been modified by the treatment of chlorosilanes and alcohols. And the hydrophobic properties of the silica have been studied by IR spectra and water adsorption.
      Alcohol modified silica exhibited OH adsorption band shift from 3750㎝^-1 to lower frequency along with the increment of alkyl absorption bands at 2985∼2860㎝^-1. Similar results were observed with silane treatment, showing most optimum treatment temperature at about 200℃.
      The adsorption tendency of treated silica toward water were significantly less than the untreated silica in the decreasing order of monomethylsilane < dimethylsilane < trimethylsilane. Adsorption properties of ethyl alcohol treated silica were almost equivalent with the ethylsilane treated silica, showing similar surface structure they might have.

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      목차 (Table of Contents)

      • Ⅰ. 序論
      • Ⅱ. 實驗
      • 1. 試藥
      • 2. Silica의 表面處理
      • 3. 處理된 silica의 水分及着
      • Ⅰ. 序論
      • Ⅱ. 實驗
      • 1. 試藥
      • 2. Silica의 表面處理
      • 3. 處理된 silica의 水分及着
      • Ⅲ. 結果 및 考察
      • 1. Silica의 IR spectra
      • 2. Alcohol로 處理된 silica의 IR spectra
      • 3. Silane으로 處理된 silicla의 IR Spectra
      • 4. 水分의 吸着
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