Fabrication of hydrophobic polymethylsilsesquioxane aerogels by a surfactant-free method using alkoxysilane with ionic group

Gen Hayase, Shuya Nagayama, Kazuya Nonomura, Kazuyoshi Kanamori, Ayaka Maeno, Hironori Kaji, Kazuki Nakanishi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Phase separation control is an important factor to prepare a porous monolith by an aqueous sol–gel reaction. Here, we report a surfactant-free synthesis method to obtain hydrophobic polymethylsilsesquioxane aerogels by copolymerizing a cationic-functionalized alkoxysilane N-trimethoxysilylpropyl-N,N,N-trimethylammonium chloride. The resultant materials have low-density, high visible-light transmittance, and high thermal insulating equivalent to those of prepared under the presence of surfactant.

Original languageEnglish
Pages (from-to)104-108
Number of pages5
JournalJournal of Asian Ceramic Societies
Volume5
Issue number2
DOIs
Publication statusPublished - 2017 Jun
Externally publishedYes

Keywords

  • Aerogels
  • Polysilsesquioxanes
  • Porous materials
  • Sol–gel
  • Surfactant-free

ASJC Scopus subject areas

  • Ceramics and Composites

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