Digital Image Analysis of Phase Separation Structures in Spinodal Decomposition of a Polymer Blend

Mikio Konno, Yoshiharu Nishikori, Shozaburo Saito

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Digital image analysis was applied to characterize structure growth in the phase separation of a poly(carbonate)/poly (methyl methacrylate) blend of a critical composition at various temperatures. Two-dimensional Fourier transformation was obtained from photographs of phase-separation structures. It was shown that the phase separation occurred in two stages. The first stage was characterized by a steady average domain distance during phase separation, and the second stage by the existence of a scaling law for structure growth. The fractal dimensionality and boundary length of the interfacial structures were also obtained during the second stage of the separation. The fractal dimensionality decreased with time, suggesting that the interface became smooth as the phase separation proceeded. The interfacial length obtained at various temperatures revealed a similar time-dependence which was approximated by a simple power law.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalJOURNAL of CHEMICAL ENGINEERING of JAPAN
Volume26
Issue number1
DOIs
Publication statusPublished - 1993

Keywords

  • Digital Image Analysis
  • Fractal Dimensionality
  • Interfacial Length
  • Material
  • Phase Separation
  • Polymer Blend
  • Spinodal Decomposition

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Digital Image Analysis of Phase Separation Structures in Spinodal Decomposition of a Polymer Blend'. Together they form a unique fingerprint.

Cite this