Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China.
Langmuir. 2013 May 14;29(19):5863-8. doi: 10.1021/la401329d. Epub 2013 May 6.
Uniform double-shelled polystyrene/poly(o-toluidine) (PS/POT) composite hollow spheres with tunable shell thickness of the POT layer have been successfully synthesized by a simple method. POT was directly coated onto the surface of negatively charged PS template spheres, which were synthesized by soap-free emulsion polymerization. Surprisingly, the resultant spheres show a double-shelled hollow structure with PS as an inner wall and POT as an exterior shell. In comparison to conventional methods, the benefits of this route are that neither organic solvents nor high-temperature calcinations were used to remove the PS template. The surface morphology, the shell thickness, and the compositions of the double-shelled spheres were systematically characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Fourier transform infrared (FTIR) spectroscopy. On the basis of our interpretation of experimental results, a mechanism for the formation of the double-shelled PS/POT composite hollow spheres is proposed.
通过一种简单的方法成功合成了具有可调节的聚邻甲苯胺（POT）层壳厚的均一双层聚苯乙烯/聚邻甲苯胺（PS/POT）复合空心球。POT 直接涂覆在通过无皂乳液聚合合成的带负电荷的 PS 模板球表面上。令人惊讶的是，所得的球体呈现出具有 PS 作为内壁和 POT 作为外壳的双层空心结构。与传统方法相比，该方法的优点是既不使用有机溶剂也不使用高温煅烧来去除 PS 模板。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）和傅里叶变换红外（FTIR）光谱对双层球的表面形貌、壳厚和组成进行了系统的表征。根据我们对实验结果的解释，提出了形成双层 PS/POT 复合空心球的机理。
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