Dynamic density functional approach to phase separation dynamics of polymer systems

Toshihiro Kawakatsu, M. Doi, R. Hasegawa

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Slow dynamics of complex domain structures in phase separating polymer systems is investigated with the use of the self-consistent field (SCF) dynamic density functional (DDF) technique where the free energy of the system is calculated using the path integral formalism of the polymer chain conformation. We apply this technique to micellization of block copolymers and to phase separation of polymer blends containing block copolymers as a compatibilizer. In order to study the late stage of the phase separation processes more efficiently, we adopt the so-called Ginzburg-Landau approach, where a phenomenological model free energy functional is used. Numerical results of this approach is quantitatively compared with the results of the SCF approach.

Original languageEnglish
Pages (from-to)1531-1540
Number of pages10
JournalInternational Journal of Modern Physics C
Volume10
Issue number8
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Keywords

  • Coarse-Grained Models
  • Ginzberg-Landau Theory
  • Phase Separation
  • Polymer Mixtures
  • Self-Consistent Field Theory

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Physics and Astronomy(all)
  • Computer Science Applications
  • Computational Theory and Mathematics

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