Frustrated phases of block copolymers in nanoparticles

Takeshi Higuchi, Atsunori Tajima, Kiwamu Motoyoshi, Hiroshi Yabu, Masatsugu Shimomura

Research output: Contribution to journalArticlepeer-review

179 Citations (Scopus)


(Figure Presented) 3D confinement effect: Block copolymers form novel phase separation structures in the nanoparticles owing to frustration of the nanosized confinement effect. Whereas films of the block copolymers form lamellar structures, the nanoparticles formed unique structures (Janus-type, tennis-ball-, mushroom-, wheel-, and screwlike structures) depending on the ratio between particle diameter and molecular weight.

Original languageEnglish
Pages (from-to)8044-8046
Number of pages3
JournalAngewandte Chemie - International Edition
Issue number42
Publication statusPublished - 2008 Oct 6


  • Block copolymers
  • Confinement effect
  • Nanoparticles
  • Phase separation structure
  • Self-organization


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