Spontaneous Orientation of the Body-Centered-Cubic Lattice for Spherical Microdomains in a Block Copolymer Thin Film

DOI Web Site Web Site 15 References
  • HONDA Konomi
    Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology
  • SASAKI Sono
    Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology
  • SAKURAI Shinichi
    Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology

Bibliographic Information

Other Title
  • ブロック共重合体薄膜中での球状ミクロドメイン体心立方格子の自発配向
  • ブロック キョウ ジュウゴウタイ ハクマク チュウ デ ノ キュウジョウ ミクロドメインタイ シンリッポウ ゴウシ ノ ジハツハイコウ

Search this article

Abstract

We report here experimental results on spontaneous orientation of the body-centered-cubic (BCC) lattice for spherical microdomains in a block copolymer thin film. Two-dimensional small-angle X-ray scattering (2d-SAXS) measurements were conducted for film specimens with thicknesses ranging from 1 to 200 µm. Specimen with a thickness below 5 µm that had been annealed at 140°C for 10 h showed spotty 2d-SAXS patterns for the edge view. It was concluded from these patterns that the (110) planes of the BCC lattice were oriented parallel to the specimen surface in the vicinity of the surfaces (both of the free surface and substrate-side surface). We estimate that the thickness of such oriented layers is approximately 4–5 µm, irrespective of the thickness of the film specimen (up to 200 µm). Upon prolonged thermal annealing up to 7 days, we found that the oriented layer thickness increased to a limit value of 4–5 µm. The layer thickness was found to reach this limit value around 15 h annealing at 140°C.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 74 (2), 75-84, 2017

    The Society of Polymer Science, Japan

References(15)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top