Preparation of mesostructured siloxane - Organic hybrid films with ordered macropores by templated self-assembly

Mikako Sakurai*, Atsushi Shimojima, Masaru Heishi, Kazuyuki Kuroda

*この研究の対応する著者

研究成果: Article査読

25 被引用数 (Scopus)

抄録

Novel hierarchically ordered siloxane-based hybrid films with well-defined macropores and mesostructured pore walls have been prepared by the self-assembly process using oligomeric siloxane precursors bearing alkyl chains (C nH2n+1 Si(OSi(OMe)3)3) in the presence of polystyrene opal films as a template. Either a two-dimensional (2D) hexagonal structure or a lamellar structure was formed depending on the alkyl chain length of the precursors (n = 10 and 16, respectively). In both of the films, the mesostructures were oriented along the spherical surface of the template and were retained after removal of the template. Calcination of the 2D hexagonal hybrid produced ordered porous silica with both macro- and microporosities. The lamellar hybrid film exhibited a unique property of accommodating alkyl alcohols with an expansion of the interlayer spacings. These results provide a new concept for designing hierarchical hybrid materials that are potentially applicable as adsorbents, catalysts, sensors, and photonic crystals.

本文言語English
ページ(範囲)10788-10792
ページ数5
ジャーナルLangmuir
23
21
DOI
出版ステータスPublished - 2007 10 9

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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