Small-angle neutron scattering study on charged gels in deformed state

Mitsuhiro Shibayama, Kazuki Kawakubo, Fumiyoshi Ikkai, Masayuki Imai

研究成果: Article査読

37 被引用数 (Scopus)

抄録

The structure of weakly charged temperature sensitive gels has been investigated in deformed state by means of small-angle neutron scattering (SANS). At low temperatures where the gel is in a good solvent, the scattered intensity pattern was isotropic even for deformed gels. When the temperature was raised to 42 °C, the so-called butterfly pattern, i.e., a prolate-shaped scattered intensity pattern with respect to the stretching direction, appeared in the deformed gels. With a further increase in temperature to 46 °C, a scattering maximum was observed. In the case of undeformed gel, the scattering pattern had a circular maximum with q = qm, where q is the magnitude of the scattering vector and qm is the q value at the scattering maximum. On the other hand, the scattering pattern became oblate for the deformed gel, i.e., qm,y < qm,x, where the subscripts y and x indicate the stretching and perpendicular directions, respectively. These changes of the SANS intensity patterns are discussed by decomposing it into the thermal fluctuations and the static inhomogeneities.

本文言語English
ページ(範囲)2586-2592
ページ数7
ジャーナルMacromolecules
31
8
DOI
出版ステータスPublished - 1998 4 21
外部発表はい

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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