本研究擬採用一端具有親水基和另一端具有親油基的兩性嵌段高分子 (amphiphilic block copolymers)溶於水中,來取代具有微胞性質的低分子量陽離子界面活性劑CTAB,形成微胞(micelles)作為模板(template),再加入親水性的矽酸鹽來製備自組奈米孔隙矽酸鹽材料。我們將選擇適當比例的親水性基/疏水性基嵌段共聚合體PEO/PPO/PEO triblock copolymer,改變反應的酸鹼值和反應溫度來觀察所形成的矽酸鹽形態上有何變化,最後把產物以溶劑沖洗萃取,去除孔洞中的嵌段高分子模板。(以溶劑去除界面活性劑,可避開把產物加熱到560 ℃鍛燒方法所造成的結構併合和塌陷問題。),用X 光繞射儀測量奈米孔隙矽酸鹽的結構; 再用偏光顯微鏡、掃瞄式電子顯微及穿透式電子顯微鏡觀察其形態 (管狀、層狀、六方SBA-15、立方..等等)。由於兩性嵌段高分子獨特的分子結構是藉由兩種不同化學性質親水與疏水嵌段的結合,若能適當調整反應條件,改變反應的酸鹼值和反應溫度,使得整體結構具有更豐富的變化,則將達到各種結構奈米矽酸鹽孔隙材料的精準合成之控制途徑。Mesoporous silicate materials were synthesized using amphiphilic block copolymers as templates. Both wide- and small-angle x-ray scattering techniques were adopted for characterization of the mesoporous structure obtained whereas morphological features were examined by use of scanning and transmission electron microscopy. We found that triblock copolymers can successfully serve as templates for the synthesis of 2D hexagonal SBA-15 mesoporous materials from tetraethylorthosilicate (TEOS) under adequate acidic conditions.