A "ladder" morphology in an ABC triblock copolymer

Takeshi Kaneko, Kazuya Suda, Kotaro Satoh, Masami Kamigaito, Toshinori Kato, Tomohiro Ono, Eiji Nakamura, Toshio Nishi, Hiroshi Jinnai

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


ABC triblock copolymers are known to exhibit a wide variety of unique types of morphologies compared to AB diblock copolymers. In the present study, poly(styrene-block-(ethylene-alt-propylene)-block-(methyl methacrylate)) (SEPM) triblock copolymers were synthesized and their morphologies were extensively studied by transmission electron microtomography (TEMT). In the SEPM triblock copolymer, two kinds of morphologies coexist: One was the well-known knitting morphology, and the other was a novel morphology called the "ladder morphology". The ladder morphology was a major morphology in the SEPM copolymer, the stability of which was discussed in terms of the interfacial area and the solubility parameters between the three components.

Original languageEnglish
Pages (from-to)80-86
Number of pages7
JournalMacromolecular Symposia
Publication statusPublished - 2006
Externally publishedYes


  • Block copolymers
  • Electron tomography
  • Nanostructure
  • TEM
  • Three-dimensional reconstruction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


Dive into the research topics of 'A "ladder" morphology in an ABC triblock copolymer'. Together they form a unique fingerprint.

Cite this