Two-level structured self-adaptive surfaces with reversibly tunable properties
Two-level structured self-adaptive surfaces with reversibly tunable properties
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DOI：
10.1021/ja0279693
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发表时间：
2003-04-02
影响因子：
15
通讯作者：
Stamm, M
中科院分区：
文献类型：
--
作者：
Minko, S;Müller, M;Stamm, M
我们报道了一种制备聚合物材料两级结构自适应表面的方法。第一层结构由一层由微米大小的针状结构组成的粗糙的聚合物膜构成。第二层结构是由不可逆地嫁接到针上的分离聚合物刷的纳米级自组装结构域形成的。通过将表面暴露在对刷子的其中一种成分具有选择性的溶剂中，我们可以可逆地调整表面属性。大规模的表面结构放大了响应，使我们能够在很大范围内控制表面的润湿性、附着力和化学成分。
We report a route to fabricate two-level structured self-adaptive surfaces (SAS) of polymer materials. The first level of structure is built by a rough polymer film that consists of needlelike structures of micrometer size. The second level of structure is formed by the nanoscopic self-assembled domains of a demixed polymer brush irreversibly grafted onto the needles. By exposing the surface to solvents that are selective to one of the components of the brush, we reversibly tune the surface properties. The large-scale surface structure amplifies the response and enables us to control wettability, adhesion, and chemical composition of the surface over a wide range.