Self-assembled porous templates allow pattern transfer to poly(dimethyl siloxane) sheets through surface wrinkling

Hiroshi Yabu, Yuta Saito, Yuki Nakamichi, Yuji Hirai, So Fujinami, Ken Nakajima, Toshio Nishi, Masatsugu Shimomura

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Euler buckling forms surface microwrinkles ranging in size from sub-micrometers to tens of micrometers as a result of the modulus difference between the surface of the material and the material itself. When the buckling occurs in the limited areas smaller than the wrinkle wavelength, the shape of the buckled surface deforms into concave dimples or convex lenses. The shape of the buckled surface can be controlled by changing the modulus of poly(dimethylsiloxane). Hierarchical patterning can also be achieved by using a photomask. This surface wrinkling process provides a novel way to nano- and micropattern soft substrates, including elastomers and gels.

Original languageEnglish
Pages (from-to)573-578
Number of pages6
JournalPolymer Journal
Volume44
Issue number6
DOIs
Publication statusPublished - 2012 Jun

Keywords

  • PDMS
  • Pattern transfer
  • Surface wrinkling
  • UV-O

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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