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Keywords:

  • Composite materials;
  • Lithography, nano-;
  • Molding;
  • Soft lithography
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Rigiflex lithography combines the mold rigidity of imprint lithography, which permits fine patterning, with the mold flexibility of soft lithography, allowing intimate contact of the mold with the surface substrate over a large area. A UV-curable mold based on poly(urethane acrylate) is prepared as a film on a flexible poly(ethylene terephthalate) support, allowing nanopatterns to be prepared by a bilayer-transfer technique (see Figure).