Preparation and some properties of organically modified layered alkali titanates with alkylmethoxysilanes

Yusuke Ide, Makoto Ogawa*

*この研究の対応する著者

研究成果: Article査読

37 被引用数 (Scopus)

抄録

The silylation of K2Ti4O9·nH 2O with organosilanes (methyl, n-butyl, n-octyl, n-dodecyl, n-octadecyltrimethoxysilanes and n-octadecyldimethylmethoxysilane) was conducted using the octylammonium-exchanged form as the intermediate. The surface coverage of the octadecylsilylated derivative was controlled by changing the employing amounts of octadecyltrimethoxysilane. The swelling behaviors of the octyl, dodecyl, and octadecylsilylated derivatives in organic solvents were investigated to show that the degree of the swelling varies depending on the kind of solvents, the alkyl chain length of the attached alkylsilyl groups, and the surface coverage. The octadecylsilylated derivative with the largest surface coverage was converted to film with a thickness of ca. 500 nm by casting the chloroform suspension on a substrate. The octadecylsilylated derivative showed a reversible thermoresponsive change of the basal spacing by ca. 0.5 nm in the temperature range between 15 and 60°C.

本文言語English
ページ(範囲)141-149
ページ数9
ジャーナルJournal of Colloid and Interface Science
296
1
DOI
出版ステータスPublished - 2006 4 1

ASJC Scopus subject areas

  • コロイド化学および表面化学
  • 物理化学および理論化学
  • 表面および界面

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