Anisotropic frequency response of critical density fluctuation of NIPA gel under oscillation shear

Masaaki Sugiyama, Martin E. Vigild, Toshiharu Fukunaga, Keiji Itoh, Kazuhiro Mori, Takashi Sato, Masahiko Annaka

Research output: Contribution to journalArticlepeer-review

Abstract

A relation between rheology and structure of high density NIPA gel around a critical point on volume phase transition was studied by a simultaneous rheology and small-angle neutron scattering measurement. Just below the critical temperature, the NIPA gel showed softening: G and G get closer (G > G). At this temperature, the density fluctuation enhanced along the shear direction corresponding to the shear frequency but not to the shear strength. It means that this anisotropy is different from that observed in a statically stretched gel.

Original languageEnglish
Pages (from-to)804-806
Number of pages3
JournalPhysica B: Condensed Matter
Volume385-386 I
DOIs
Publication statusPublished - Nov 27 2006

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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