Long-range ordered thin films of block copolymers prepared by zone-casting and their thermal conversion into ordered nanostructured carbon.

نویسندگان

  • Chuanbing Tang
  • Adam Tracz
  • Michal Kruk
  • Rui Zhang
  • Detlef-M Smilgies
  • Krzysztof Matyjaszewski
  • Tomasz Kowalewski
چکیده

Large-scale alignment of lamellae in thin films of diblock copolymers containing polyacrylonitrile and poly(n-butyl acrylate) was achieved by casting copolymer solution on a silicon substrate moved away at a constant speed from the casting nozzle (zone-casting). Grazing incidence small-angle X-ray scattering revealed that the lamellae, which were perpendicular to the substrate, were also aligned over macroscopic scale in the direction perpendicular to the casting direction. Such long-range ordered block copolymer films were then converted by pyrolysis into nanostructured carbons, with excellent preservation of lamellar morphology and orientation.

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عنوان ژورنال:
  • Journal of the American Chemical Society

دوره 127 19  شماره 

صفحات  -

تاریخ انتشار 2005