文献类型：期刊文献

英文题名：Photo-switchable smart superhydrophobic surface with controllable superwettability

作者：Yang, Xiaoyan[1];Jin, Haibao[1];Tao, Xinfeng[1];Xu, Binbin[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, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2021

卷号：12

期号：37

起止页码：5303

外文期刊名：POLYMER CHEMISTRY

收录：;EI(收录号：20214110995384);WOS:【SCI-EXPANDED(收录号:WOS:000693683300001)】；

基金：This work was supported by the National Natural Science Foundation of China (52073092, 22001071, and 51873061). Support from Shanghai Scientific and Technological Innovation Projects (19JC1411700, and 18JC1410802) is also appreciated. Financial support was additionally provided by the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning.

语种：英文

外文关键词：Polymer films - Wetting - Hydrophobicity - Surface properties - Semiconducting films

摘要：New-generation smart surfaces responsive to external stimuli with a controllable wettability have garnered increasing attention in recent years. Notably, a smart surface with a switchable wettability that manifests the facile transition between water-adhesive, rolling isotropic, and rolling anisotropic forms has yet to be explored. Herein, we report the crafting of a superhydrophobic surface with both tunable microstructures and wettability by capitalizing on the azobenzene-containing memory polymer as the substrate. Intriguingly, through photo-manipulation, the azo-polymer film is reversibly and reliably transformed among three wetting states, that is, rose-petal-like water-adhesion, lotus-leaf-like rolling isotropy, and rice-leaf-like rolling anisotropy. Furthermore, the smart superhydrophobic surface is employed as a rewritable platform for droplet transportation. As such, our study expands the category of responsive bio-inspired superhydrophobicity and provides a new strategy to design and access superwetting materials.