煅烧
扫描电子显微镜
聚苯乙烯
材料科学
化学工程
丙烯酸
介孔二氧化硅
透射电子显微镜
介孔材料
解吸
多孔性
聚合物
复合材料
吸附
共聚物
化学
纳米技术
有机化学
催化作用
工程类
作者
Ge Chen,Dongzhi Zhang,Aili Wang,Hengbo Yin,Min Ren,Yumin Liu,Tingshun Jiang,Longbao Yu
标识
DOI:10.1016/j.jpcs.2009.08.013
摘要
Porous hollow silica spheres were prepared by using polystyrene–methyl acrylic acid latex as a template and cetyltrimethylammonium bromide as a wall structure-directing agent starting from tetraethoxysilane. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), FT-infrared spectroscopy (FT-IR) and nitrogen adsorption/desorption were used to characterize the hollow silica spheres. When silica-coated latex composites were prepared at room temperature, hollow silica spheres with micropores in the walls were formed after removing the latex templates by calcination. When silica-coated latex composites were aged at a higher temperature of 150 °C, intact mesoporous hollow silica spheres were formed after calcination treatment.
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