Microphase-separated structure of two-component block copolymers with composition distribution

Naoya Torikai, Masatoshi Okuda, Atsushi Noro, Daisuke Kawaguchi, Atsushi Takano, Yushu Matsushita

Research output: Contribution to conferencePaperpeer-review


Segment distribution of component polymer in a lamellar microdomain for two-component triblock copolymer of styrene and 2-vinylpyridine with wide composition distribution was investigated by using neutron reflectivity measurement. The wide composition distribution was produced by mixing three triblock copolymers, synthesized by an anionic polymerization method, with the same molecular weight but different volume fraction of middle block chain, about 0.2, 0.5 and 0.8. The prepared triblock copolymer blends formed a uniform lamellar structure highly oriented along the direction parallel to the film surface. Also, it was clarified that the segments of the shortest middle block chain in the blend system still exist at the center of lamellar microdomain.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005
Externally publishedYes
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: May 25 2005May 27 2005


Other54th SPSJ Annual Meeting 2005

All Science Journal Classification (ASJC) codes

  • General Engineering


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