Novel organic-vycor glass composite membrane having Si-C bonds

Mikihiro Nomura*, Yasuyuki Mineta, Naoko Yamaguchi, Eiichi Kikuchi, Koichi Fukunaga, Norikazu Nishiyama, Korekazu Ueyama, Masahiko Matsukata

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A novel organic-ceramic membrane having stable Si-C bonds was developed for separation of high temperature organic solutions. Porous vycor glass was employed for a substrate which was modified by a series of chemical vapor deposition (CVD) and hydrosilylation. 1,3,5,7-Tetramethylcyclotetrasiloxane (H4) was used as a CVD source in order to introduce Si-H bonds on the surface of porous vycor glass. The Si-H bonds were then catalytically hydrosilylated with olefins. As a result, organic functional groups were introduced via Si-C bonds. A compact membrane was obtained when CVD treatment was carried out at 343 K. The membrane that was modified by the hydrosilylation of styrene showed benzene permselectiviy in benzene/cyclohexane vapor permeation test at 373 K. The separation factor of benzene over cyclohexane was 2.9 and benzene flux was 1.2 × 10 -5 mol m -2s -1Pa -1, and the permeation properties are stable for more than 1000 min at 373 K.

Original languageEnglish
Pages (from-to)731-736
Number of pages6
Issue number6
Publication statusPublished - 2001 Jun


  • CVD
  • Hydrosilylation
  • Membrane
  • Organic modification
  • Porous vycor glass
  • Si-C bonds

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


Dive into the research topics of 'Novel organic-vycor glass composite membrane having Si-C bonds'. Together they form a unique fingerprint.

Cite this