Superhydrophobic surface from vapor-induced phase separation of copolymer micellar solution

Ning Zhao, Qiongdan Xie, Lihui Weng, Shengqing Wang, Xiaoyan Zhang, Jian Xu

Research output: Contribution to journalArticlepeer-review

153 Scopus citations

Abstract

A simple method for the preparation of the superhydrophobic copolymer poly(styrene)-b-poly(dimethylsiloxane) (PS-b-PDMS) surface is discussed. It was observed that a rough surface with low surface tension can be faciley fabricated in one step by casting the micellar solution of copolymer in humid air. It was also observed that the superhydrophobicity did not solely come from the increased surface roughness with respect to the surface activity of the PDMS block. The results show that the PDMS concentration at the topmost layer of the surface cast from the heptane is as high as 93.1 mol %.

Original languageEnglish (US)
Pages (from-to)8996-8999
Number of pages4
JournalMacromolecules
Volume38
Issue number22
DOIs
StatePublished - Nov 1 2005

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