Dynamical aspects in dehydrated gel

Kazuhiro Hara, Yusuke Sueyoshi, Masaaki Sugiyama, Toshiharu Fukunaga

Research output: Contribution to journalConference articlepeer-review


After a brief review on the Raman scattering investigations of dehydrated gels, the effect of a structural inhomogeneity on a low energy excitation is discussed. A diffusive central mode observed in a wet polyacrylamide gel becomes narrow with the progress of dehydration and, at last, a low-lying peak appears around 80 cm- 1. The peak can be observed above the glass transition temperature indicating a relation to the cross-links of the polymer network. The estimation of such a relation is supported by a low-lying spectral change caused by a structural inhomogeneity.

Original languageEnglish
Pages (from-to)166-169
Number of pages4
Publication statusPublished - 2007
Event8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8 - Tsukuba, Japan
Duration: May 15 2006May 19 2006

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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