A Smart Superwetting Surface with Responsivity in Both Surface Chemistry and Microstructure.
A Smart Superwetting Surface with Responsivity in Both Surface Chemistry and Microstructure.
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DOI：
10.1002/anie.201800416
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发表时间：
2018-03
影响因子：
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通讯作者：
Dongjie Zhang;Zhongjun Cheng;Hongjun Kang;Jianxin Yu;Yuyan Liu;Lei Jiang
中科院分区：
文献类型：
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作者：
Dongjie Zhang;Zhongjun Cheng;Hongjun Kang;Jianxin Yu;Yuyan Liu;Lei Jiang
近年来，具有可切换润湿性的智能表面引起了人们的广泛关注。然而，这些表面只能改变单一的表面化学性质或微观结构，这大大限制了它们的润湿性能、可控性和应用。将聚N-异丙基丙烯酰胺接枝到柱状结构的形状记忆聚合物上，制备了一种具有可调表面微结构和化学性质的新型表面，通过协同调控表面微结构和化学性质，可以可逆地精确控制从超亲水到超疏水的多种润湿状态.同时，基于这种良好的可控性，我们还展示了将表面作为一个可调平台的应用，可以获得各种梯度润湿。本工作首次提出了一种在表面化学和微观结构上都具有可控性的表面，为新型超润湿材料的设计提供了一些新的思路。
Recently, smart surfaces with switchable wettability have aroused much attention. However, only single surface chemistry or the microstructure can be changed on these surfaces, which significantly limits their wetting performances, controllability, and applications. A new surface with both tunable surface microstructure and chemistry was prepared by grafting poly(N-isopropylacrylamide) onto the pillar-structured shape memory polymer on which multiple wetting states from superhydrophilicity to superhydrophobicity can be reversibly and precisely controlled by synergistically regulating the surface microstructure and chemistry. Meanwhile, based on the excellent controllability, we also showed the application of the surface as a rewritable platform, and various gradient wettings can be obtained. This work presents for the first time a surface with controllability in both surface chemistry and microstructure, which starts some new ideas for the design of novel superwetting materials.