文献类型：期刊文献

英文题名：Photoresponsive Superhydrophobic Membrane Crosslinked by Bipedal Pillararenes with Patterned Wettability

作者：Li, Jinjie[1];Dong, Jinhui[1];Wang, He[1];Yang, Xiaoyan[1];Chen, Jianzhuang[1];Gu, Jinlou[1];Lin, Shaoliang[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat, Minist Educ,Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：8

期号：23

外文期刊名：ADVANCED MATERIALS INTERFACES

收录：;EI(收录号：20214611149825);WOS:【SCI-EXPANDED(收录号:WOS:000716846800001)】；

基金：J.L. and J.D. contributed equally to this work. This work was supported by the National Natural Science Foundation of China (52073092, 51873061, and 91834301). Support from the Projects of Shanghai Municipality (19JC1411700, 18JC1410802, 21ZR1415900, and 18ZR1408200) are also appreciated.

语种：英文

外文关键词：patterned wettability; photoresponsiveness; pillararene; polypseudorotaxane; superhydrophobic membranes

摘要：The facile fabrication of superhydrophobic membrane with patterned and controllable wettability is crucial to the exploitation of precise control of water flow path. Here, an azobenzene-bridged bipedal pillararenes-crosslinked polypseudorotaxane is used to fabricate a superhydrophobic membrane via the combination of electrospraying and breath figure approaches. Regulation of the relative humidity during electrospraying process and the trans-cis isomerization of azobenzene provide the capability to control the water adhesion force of membrane. These rules are applied to engineer the wettability of membrane into various patterns via re-electrospraying or light irradiation with patterned photomask. These efforts demonstrate the potential of polypseudorotaxanes for applications in smart membrane with patterned wettability.