Direct three-dimensional observation of phase structures in a non-aqueous physical gel by synchrotron X-ray CT

Naruhiko Mashita, Tadashi Minamikawa, Kentaro Uesugi, Hiroshi Jinnai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A phase structure of a non-aqueous physical gel was speculated to be somewhat different from what is typically observed in binary liquid mixtures, e.g. the island-in-sea structure or bicontinuous structure. This is primarily because the conventional microscopy, scanning electron microscopy, and even laser scanning confocal microscopy offer structural information only at (or near) the surface and thus limited structural information can be obtained. High resolution X-ray computer tomography installed at SPring-8 was used to obtain three-dimensional (3 D) structure of the gel in non-destructive way. It was found for the first time that oil-containing cells were connected to make continuous oil-rich domains in the 3 D space ("microcellular porous structure"). This observation confirms the speculative model proposed in the previous study and also implies significance of dynamical asymmetry of the two components, i.e. oil and crystalline elastomer, during the gel formation processes.

Original languageEnglish
Pages (from-to)373-376
Number of pages4
JournalKOBUNSHI RONBUNSHU
Volume60
Issue number7
DOIs
Publication statusPublished - 2003 Jul
Externally publishedYes

Keywords

  • Network
  • Physical gel
  • X-ray CT

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

Fingerprint Dive into the research topics of 'Direct three-dimensional observation of phase structures in a non-aqueous physical gel by synchrotron X-ray CT'. Together they form a unique fingerprint.

  • Cite this