Design of nanohybrid and nanoporous materials through self-assembly of organosilane molecules

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8 Citations (Scopus)

Abstract

Structural control of silica-based materials prepared by sol-gel chemistry is important from both fundamental and practical viewpoints. This paper reviews our work on the synthesis of ordered siloxane-based nanomaterials by self-assembly of organosilane-based precursors. Lamellar siloxane-organic hybrids with various structures, macroscopic morphologies, and properties have been prepared from long-chain alkyltrialkoxysilanes or organoalkoxysilane- tetraalkoxysilane mixtures by self-assembly during hydrolysis and polycondensation. Furthermore, the molecular design of novel alkylsiloxane precursors having a large oligosiloxane head led to the formation of hybrid mesostructures consisting of cylindrical assemblies that gave ordered microporous or mesoporous silica by calcination. These results open a new self-assembly route to the design of ordered nanoporous materials as well as nanohybrid materials without the use of any templates or structure-directing agents.

Original languageEnglish
Pages (from-to)278-283
Number of pages6
JournalJournal of the Ceramic Society of Japan
Volume116
Issue number1350
DOIs
Publication statusPublished - 2008 Feb

Keywords

  • Nanoporous silica
  • Organoalkoxysilane
  • Self-assembly
  • Silica-based hybrid
  • Sol-gel processing

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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