Light-responsive smart surface with controllable wettability and excellent stability.
Light-responsive smart surface with controllable wettability and excellent stability.
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DOI：
10.1021/la501907w
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发表时间：
2014-10
期刊：
影响因子：
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通讯作者：
Yin‐Ning Zhou;Jin‐Jin Li;Qing Zhang;Z. Luo
中科院分区：
文献类型：
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作者：
Yin‐Ning Zhou;Jin‐Jin Li;Qing Zhang;Z. Luo
设计了一种新型的氟化梯度共聚物，用于智能表面，具有光响应可控的润湿性和优异的稳定性。采用紫外可见光谱（UV-vis）、扫描电子显微镜（SEM）、原子力显微镜（AFM）和x射线光电子能谱（XPS）研究了高分子材料修饰表面的转换机理和物理化学特性。由于功能膜和表面粗化，螺旋pyran （Sp）基团共聚物制备的蚀刻硅表面具有较大的WCA变化范围（28.1°），实现了相对于空白样品（109.2°）亲水性（95.2°109.2°）的转变。该合成策略和开发的智能表面在具有可控润湿性的涂层中具有广阔的应用前景，可以弥合化学结构与材料性能之间的差距。
Novel fluorinated gradient copolymer was designed for smart surface with light-responsive controllable wettability and excellent stability. The switchable mechanism and physicochemical characteristics of the as-prepared surface decorated by designed polymeric material were investigated by ultraviolet-visible (UV-vis) spectrum, scanning electron microscope (SEM), atomic force microscope (AFM), and X-ray photoelectron spectroscopy (XPS). Thanks to the functional film and surface roughening, etched silicon surface fabricated by copolymer involving spiropyran (Sp) moieties possesses a fairly large variation range of WCA (28.1°) and achieves the transformation between hydrophilicity (95.2° 109.2°) relative to blank sample (109.2°). The synthetic strategy and developed smart surface offer a promising application in coating with controllable wettability, which bridge the gap between chemical structure and material properties.