Development of flexible porous materials from organotrialkoxysilanes

Kazuyoshi Kanamori, Gen Hayase, Kazuki Nakanishi

Research output: Contribution to journalReview articlepeer-review

Abstract

Organosiloxane (RnSiO(4-n)/2) gels can be prepared from organoalkoxysilanes using the sol-gel process. In general,however, formation of uniform networks from these precursors is strongly inhibited due to cyclization reactions. In addition, phase separation of hydrophobic condensates from polar solvent leads to inhomogeneous gels in these systems. A careful control of the hydrolysis and polycondensation reactions is therefore required to obtain a monolithic gel with desired properties. We have been trying to control the sol-gel reactions as well as phase separation in these systems to obtain unique porous materials particularly from methyltrimethoxysilane(MTMS) and dimethyldimethoxysilane (DMDMS). Flexible aerogels and xerogels based on the methylsiloxane networks are discussed.

Original languageEnglish
Pages (from-to)320-325
Number of pages6
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume59
Issue number6
DOIs
Publication statusPublished - 2012 Jun 1
Externally publishedYes

Keywords

  • Aerogel
  • Mechanical property
  • Organic-inorganic hybrid
  • Porous material
  • Sol-gel

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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