3D observation of lamellar grain boundaries

Koji Sawa, Hiroshi Jinnai, Yukihiro Nishkawa, Toshio Nishi

Research output: Contribution to conferencePaperpeer-review


In the microphase separation of block copolymers, it is known to form polygrain structures. In a single grain, the microphase-separated domains order in the same periodicity and orientation, while the orientation of each grain is different from each other. At the boundary of grains, the microphase-separated domains are supposed to form "grain boundary strcture" which is different from the equilibrium structure in order to minimize the interfacial free energy between the grains with different orientations. In this study, the structures at lamellar grain boundary were studied by transmission electron microtomography (TEMT). A structure similar to the Scherk's surface which is considered to be a typical model structure for lamellar grain boundary, was found.

Original languageEnglish
Number of pages2
Publication statusPublished - 2005 Dec 1
Externally publishedYes
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 2005 Sept 202005 Sept 22


Other54th SPSJ Symposium on Macromolecules


  • Block copolymer
  • Grain boundary
  • Lamellae
  • Scherk's surface
  • Transmission electron mcrotomography

ASJC Scopus subject areas

  • Engineering(all)


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