Small-angle neutron scattering studies on phase behavior of block copolymers

H. Hasegawa, N. Sakamoto, H. Takeno, H. Jinnai, T. Hashimoto, D. Schwahn, H. Frielinghaus, S. Janben, M. Imai, K. Mortensen

Research output: Contribution to journalConference articlepeer-review

22 Citations (Scopus)


Miscibility and phase behavior of a deuterated polybutadiene-block-polyisoprene diblock copolymer (DPB-HPI) were investigated by means of small-angle neutron scattering as a function of temperature and pressure. This copolymer exhibited lower critical ordering transition-type phase behavior. In a wide temperature range below the order-disorder transition, the inverse scattered intensity maximum of the first-order peak linearly increases with the inverse absolute temperature, in agreement with the predictions of the mean-field theory. We found anomalously large pressure dependence of the spinodal temperature estimated from the temperature dependence of the susceptibility.

Original languageEnglish
Pages (from-to)1307-1312
Number of pages6
JournalJournal of Physics and Chemistry of Solids
Issue number8
Publication statusPublished - 1999
Externally publishedYes
EventProceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) - Tokyo, Jpn
Duration: 1998 Nov 241998 Nov 27

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


Dive into the research topics of 'Small-angle neutron scattering studies on phase behavior of block copolymers'. Together they form a unique fingerprint.

Cite this