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Article
The Synthesis and Characterization of Alkyl Bonded Phases from a Silica Hydride by Hydrosilation with Free Radical Initiation
Journal of Chromatography A (1997)
  • J. J. Pesek, San Jose State University
  • Maria T. Matyska-Pesek, San Jose State University
  • E. J. Williamsen
  • M. Evanchic
  • V. Hazari
  • K. Konjuh
  • S. Takhar
  • R. Tranchina
Abstract

A new approach for the hydrosilation of silica hydride surfaces by free radical addition is evaluated. The method is successful using either AIBN or tert.-butyl peroxide as the free radical initiator. A variety of organic moieties such as 1-octene, 1-triacontene, 2-methyl-3-butenitrile, 7-octene-1,2-diol, 3-butene-1-ol and propiolic acid are bonded by using at least one of the free radical species. If the organic group is small then some polymerization is observed. If a large ratio of free radical to organic compound is used then the degree of polymerization increases for the shorter chain alkyl bonded materials. A few chromatographic tests on two of the bonded phases, C30 and 7-octene-1,2-diol, give results comparable to those obtained on identical materials made by metal complex catalysis and by conventional organosilanization.

Disciplines
Publication Date
1997
Publisher Statement
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Citation Information
J. J. Pesek, Maria T. Matyska-Pesek, E. J. Williamsen, M. Evanchic, et al.. "The Synthesis and Characterization of Alkyl Bonded Phases from a Silica Hydride by Hydrosilation with Free Radical Initiation" Journal of Chromatography A Vol. 786 Iss. 2 (1997)
Available at: http://works.bepress.com/maria_matyska-pesek/95/