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Keywords:

  • membranes;
  • polysulfone;
  • stimuli-sensitive polymers;
  • surfaces;
  • wetting

Abstract

Polysulfone membranes strongly hydrophobic from one side and hydrophilic from the other side are reported. The membranes demonstrate diode-like water permeability. The membranes are obtained by the breath figures self-assembly with micro-scaled stainless steel gauzes used as carrying supports. Hydrophilicity is achieved by exposure of one side of the membrane to UV light. Hydrophobicity of the non-treated side of membranes is strengthened by the Cassie–Baxter wetting.mame201200421-gra-0001