Real space observation of phase separating structure in a sol-gel system

Haruko Saito, Kazuyoshi Kanamori, Kazuki Nakanishi, Kazuyuki Hirao, Yukihiro Nishikawa, Hiroshi Jinnai

Research output: Contribution to conferencePaperpeer-review


In a sol-gel system accompanied by phase separation, co-continuous macroporous silica gels have been obtained with interconnected gel skeleton and well-defined macropores. The exact formation mechanism of the co-continuous structure, however, has not been sufficiently elucidated in a silica sol-gel system, due to the difficulty of observation in real space. After a device for preferential distribution of marker dye in gel phase and an adjustment of refractive indices between gel and solvent phases, time evolution of phase separating structure has been observed by laser scanning confocal microscopy and the detailed examination of the phase separation mechanism in a sol-gel system has been attempted.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005 Dec 1
Externally publishedYes
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: 2005 May 252005 May 27


Other54th SPSJ Annual Meeting 2005


  • Laser scanning confocal microscopy/
  • Sol-gel system
  • Spinodal decomposition

ASJC Scopus subject areas

  • Engineering(all)


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