Light-Driven Transformation of Bio-Inspired Superhydrophobic Structure via Reconfigurable PAzoMA Microarrays: From Lotus Leaf to Rice Leaf

被引：64
作者：
Gao, Fei [1 ]
Yao, Yuan [1 ]
Wang, Wei [1 ]
Wang, Xiaofan [1 ]
Li, Lei [2 ]
Zhuang, Qixin [1 ]
Lin, Shaoliang [1 ]
机构：
[1] East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China
[2] Xiamen Univ, Coll Mat, Xiamen 621005, Peoples R China
来源：
MACROMOLECULES | 2018年 / 51卷 / 07期
基金：
中国国家自然科学基金;
关键词：
SELF-CLEANING SURFACES; BREATH FIGURE; FEMTOSECOND-LASER; WATER ADHESION; PHOTOFLUIDIZATION; SUPERWETTABILITY; DEFORMATION; WETTABILITY; FABRICATION; COPOLYMERS;
D O I：
10.1021/acs.macromol.8b00059
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Light-driven transformation from isotropic super hydrophobicity to anisotropic superhydrophobicity was accomplished through bio-inspired modification and reconfiguration on poly[6-(4-methoxy-4'-oxyazobenzene)hexyl methacrylate] (PA-zoMA) microarrays. In this study, ordered PAzoMA microarray film was fabricated via the reverse breath figure (RBF) method. After gold nanoparticles sputtering and subsequent modification with self-assembly of 1H,1H,2H,2H-perfluorodecanethiol (FSH), the obtained lotus-leaf-inspired film showed isotropic super hydrophobicity with self-cleaning property due to the hierarchical structure and low surface free energy. Upon irradiation with linearly polarized light (LPL), the microspheres were elongated along the direction of polarization and exhibited anisotropic superhydrophobicity resembling rice leaf. With the increase of illumination time, the axis ratio became larger, and anisotropy sliding was more obvious. This research enriches responsive bioinspired superhydrophobicity and further provides a promising candidate for smart water harvesting.
引用
收藏
页码：2742 / 2749
页数：8
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