Preparation of Three-Dimensional Polymeric Structures Using Gas Bubbles as Templates
Preparation of Three-Dimensional Polymeric Structures Using Gas Bubbles as Templates
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DOI：
10.1021/jp8008089
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发表时间：
2008-08
影响因子：
3.7
通讯作者：
M. Mazur
中科院分区：
文献类型：
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作者：
M. Mazur
通过2-甲氧基苯胺或2-乙氧基苯胺在微米级气泡上的空间选择性聚合，合成了载玻片上的三维聚合物结构。气泡扮演着模板的角色，以球形胶囊的形式指导聚合物的生长。结果表明，聚合反应在气体/溶液界面开始，随后向玻璃/溶液界面生长。因此，可以区分两种形成胶囊的途径。第一种方法包括将气泡吸附到玻璃上，然后在吸附的气泡上涂上聚合物。这产生了相对较少数量的聚合物胶囊来装饰表面。在第二种途径中，溶液中产生的气泡首先被聚合物覆盖，然后被吸附到玻璃表面(已经用一层薄的聚合物薄膜修饰)。在此过程中，聚合体粒子大量积累。
Three-dimensional polymeric structures supported on glass slides were synthesized by spatially selective polymerization of 2-methoxyaniline or 2-ethoxyaniline onto micrometer-sized gas bubbles. The gas bubbles play the role of templates that direct the polymer growth in the form of spherical capsules. It was shown that the polymerization reaction is initiated at the gas/solution interface and is followed by growth extending onto the glass/solution interface. In consequence, two pathways of capsule formation can be distinguished. The first pathway involves the adsorption of gaseous bubbles onto glass, which is followed by coating the adsorbed bubbles with the polymer. This yields a relatively small number of polymeric capsules decorating the surface. In the second pathway, the gas bubbles generated in the bulk of the solution are first coated with the polymer and then adsorbed onto the glass surface (already modified with a thin polymeric film). In this process, a large number of polymeric particles accumu...