A Bioinspired Hierarchical Underwater Superoleophobic Surface with Reversible pH Response,Advanced Materials Interfaces

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A Bioinspired Hierarchical Underwater Superoleophobic Surface with Reversible pH Response
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2020-03-29 , DOI: 10.1002/admi.202000101
Xia Huang _{1,

2} , Hatice Mutlu ₂ , Patrick Theato _{1,

2}

Affiliation

The development of oil‐repellent surfaces in liquid environments has received considerable attention because of the urgent demand for antifouling coatings in marine industry. Inspired by the unique nanostructure surface of filefish scale, hierarchical films that consist of poly(pentafluorophenyl acrylate) free standing micropillars grafted with pH responsive poly(methacrylic acid) nanobrushes are fabricated by anodic aluminum oxide templating method combined with a subsequent post‐polymerization modification strategy. The obtained films exhibit constantly underwater superoleophobicity, furthermore, a pH sensitive functionality, which enables reversible switching between low and high oil adhesion as a result of the adjustable oil sliding angle. This particular study provides a very mild method for the facile fabrication of bioinspired nanostructures with excellent oil‐repellent performance and switchable oil‐adhesion properties, thus paving the way toward novel functional materials with smart structures for promising applications, such as smart microfluidics, controllable bioadhesion, and intelligent materials for oil removal treatment and marine antifouling.

中文翻译：

具有可逆pH响应的生物启发式分层水下超疏油表面

由于海洋工业对防污涂料的迫切需求，液体环境中拒油表面的开发受到了广泛的关注。受鳞鱼鳞片独特的纳米结构表面的启发，通过阳极氧化铝模板法结合随后的聚合后修饰策略，制备了由独立的聚五氟苯基丙烯酸酯微柱与pH响应性聚甲基丙烯酸纳米刷接枝而成的分层膜。。所获得的薄膜始终具有水下超疏油性，此外还具有pH敏感功能，由于可调的滑油角，该功能可在低油密性和高油密性之间实现可逆转换。

更新日期：2020-03-29

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