An underwater pH-responsive superoleophobic surface with reversibly switchable oil-adhesion

Qunfeng Cheng, Mingzhu Li, Fu Yang, Mingjie Liu, Lin Li, Shutao Wang, Lei Jiang

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79 Citations (Scopus)


An underwater pH-responsive superoleophobic surface successfully demonstrated a reversible switch of oil-adhesion on a nanostructured poly(acrylic acid) (PAA) surface by changing the environmental pH values. At low pH, intramolecular hydrogen bonding of PAA is formed, and results in high oil-adhesion. As for high pH, the oil droplets can easily roll off due to the intermolecular hydrogen bonding between PAA and surrounding water.

Original languageEnglish
Pages (from-to)6740-6743
Number of pages4
JournalSoft Matter
Issue number25
Publication statusPublished - 7 Jul 2012
Externally publishedYes

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