Strict in-plane alignment control of block-copolymer-templated mesostructured silica films using an alignment-controlling agent

Wataru Kubo, Masahiko Takahashi, Kohei Okamoto, Shin Kitamura, Hirokatsu Miyata

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

An alkoxysilane with an alkyl chain is introduced as an alignment-controlling agent of a block-copolymer-templated mesostructured silica film. Use of the alkylalkoxysilane achieves the alignment of the mesochannels of a triblock-copolymer-templated film by an intermolecular interaction with a rubbing-treated polyimide film. Co-use of an alkoxysilane with a hydroxymethyl group as a hydrophobicity reducing agent improves the alignment close to that of the film prepared using an alkyl surfactant. This concept widens the range of the structural period of aligned mesoporous films and thus widens the useful range of the anisotropic optical properties.

Original languageEnglish
Pages (from-to)8193-8196
Number of pages4
JournalLangmuir
Volume29
Issue number26
DOIs
Publication statusPublished - 2013 Jul 2
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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