Nano-disks prepared by using the phase separation structures in block copolymer nanoparticles

Takeshi Higuchi, Hiroshi Yabu, Masatsugu Shimomura

Research output: Contribution to conferencePaperpeer-review


It is known that block copolymers are formed micro-phase separation structures in their thin films. We have reported that the block copolymer nano-particles with micro-phase separation structures can be prepared by evaporation of THF from the THF/water mixing solution of the block copolymer. In this study, we prepared the nanosized disk structures from the block copolymer nanoparticles. After selective cross-linking of isoprene double bonds with OsO4, the solvent was exchanged from water to THF, which is a good solvent of polystyrene. Moreover, the solution was sonicated. As a result, the nano-disk structures were formed. The detail structure of the nano-disks were observed by scanning transmission electron microscopy (STEM).

Original languageEnglish
Number of pages1
Publication statusPublished - 2006
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: 2006 May 242006 May 26


Other55th SPSJ Annual Meeting


  • Block copolymer
  • Nanoparticles
  • Phase separation
  • Self-organization

ASJC Scopus subject areas

  • Engineering(all)


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