Interface-Directed Web-to-Pillar Transition of Microphase-Separated Siloxane Gels

Kazuyoshi Kanamori, Kazuki Nakanishi, Kazuyuki Hirao, Hiroshi Jinnai

研究成果: Article査読

10 被引用数 (Scopus)

抄録

A unique pillar structure of methylsiloxane gel in microfabricated grooves was developed through the competition of phase separation and wetting. In the course of the phase separation in the methylsiloxane sol - gel system, the siloxane phase completely wetted the surface of the grooves while forming material transfer channels, which were arrested as a permanent structure by the sol - gel transition. The phase-separated structure shows an isotropic weblike bicontinuous structure in the grooves wider than the critical value. However, in the narrower grooves, only the pillar structure remained, showing a web-to-pillar transition. The critical value is nearly equal to the characteristic length of the bulk.

本文言語English
ページ(範囲)9101-9103
ページ数3
ジャーナルLangmuir
19
22
DOI
出版ステータスPublished - 2003 10 28
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 表面および界面
  • 分光学
  • 電気化学

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