3D observation of microphase-separated structures of a block copolymer thin films

Ken Ichi Niihara, Ukyo Matsuwaki, Yukihiro Nishikawa, Hiroshi Jinnai, Naoya Torikai, Toshio Nishi

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)


Microphase-separated structures of a Poly(deuterated styrene-block-2- vinylpyridine) (dPS-b-PVP) thin films were studied by transmission electron microtomography (TEMT) and neutron reflectivity (NR). The dPS-b-PVP shows lamellar morphology in bulk. The thin film was prepared by spin-coating on a Si substrate, and then annealed at 170°C for 10 days before TEMT and NR experiments. Three-dimensional (3D) volume data was obtained by TEMT. Volume fractions of dPS in direction perpendicular to the substrate, i.e. depth profiles, were independently obtained from 3D volume data and NR. In addition, the depth profile obtained by TEMT was used as an initial guess in a model fitting of reflectivity profile. We examine the validity of such model fitting in the reflectivity measurements.

Original languageEnglish
Number of pages2
Publication statusPublished - 2005
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 2005 Sept 202005 Sept 22


Conference54th SPSJ Symposium on Macromolecules


  • Block Copolymer
  • Neutron Reflectivity
  • Thin film(s)
  • Transmission Electron Microtomography


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