Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 38, Pages 14936-14940Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1jm12305j
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We present a simple and straightforward method for creating a hierarchical structure in which the nanoscale roughness is derived from a microstructure. This hierarchical structure is at the backbone of almost all biomimetic functions. A liquid blend of a photocurable prepolymer and a functionalized polysiloxane is moulded by photocuring, and then the moulded film is simply exposed to a blanket oxygen plasma to produce the hierarchical structure. The nanoscale roughness is controlled by varying the weight ratio of acrylate-functionalized polysiloxane to acrylated prepolymer. To demonstrate the efficacy of the fabrication method, a superhydrophobic surface was produced by coating the hierarchical structure with a self-assembled monolayer (SAM).
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