期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 28, 页码 25436-25444出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b07767
关键词
azobenzene; superhydrophobic; photo-responsive; super-wettability; fluorine-containing
资金
- National Natural Science Foundation of China [21704033, 21574099, 21875160]
- Natural Science Foundation of Shandong Province of China [ZR2017ZC0529]
- Key Research Program of Shandong Province of China [2018GGX102002]
- Natural Science Foundation of Tianjin City [15JCZDJC31400]
Realizing smart surfaces with switchable wettability inspired by nature continues to be fascinating as well as challenging. Herein, we present a versatile dip-coating approach to fabricate smart polymer-functionalized flexible surfaces with photoswitchable super-wettability. Decorated with novel acrylate copolymers bearing a trifluoromethyl side chain and fluorine-containing azobenzene derivative moieties, the modified cotton fabric possesses a rose petal-like superhydrophobicity with contact angles larger than 150 degrees and high water adhesion. This smart surface exhibits rapid phototriggered wettability transformation between superhydrophobicity and super-hydrophilicity via alternate irradiation with ultraviolet and visible light, respectively. Meanwhile, the as-prepared flexible smart surfaces have excellent chemical and physical stabilities, which could tolerate harsh environmental conditions and repetitive mechanical deformation (e.g., stretching, curling, folding, and twisting) as well as multiple washing. More importantly, based on the excellent photocontrollability, various erasable and rewritable patterns with distinct wetting properties upon selective photoirradiation can be obtained. This simple strategy and the developed smart surface may find more advanced potential applications in controllable liquid transport, patterning droplet microarrays, and microfluidic devices.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据