Infrared study of the silica/silane reaction. Part II

M. El-Roz, F. Thibault-Starzyk, Anke Blume

Research output: Contribution to journalArticleAcademicpeer-review


The grafting of different silanes and probe molecules on ULTRASIL® 7000 GR was studied with a special IR technique. A relationship between the molecular size of silanes and reacted silanols at the silica surface was determined. The accessibility of the SiOH-groups to the silane is decreasing with the increasing size of its alkyl group (stearic hindrance). VP Si 363® behaves different due to the additional adsorption possibilities of the long alkylpolyethergroups. The combination of ULTRASIL® 7000 GR with VP Si 363® shows the highest efficiency in silica/ silane coupling.
Original languageEnglish
Pages (from-to)53-57
Number of pages5
JournalKGK Kautschuk, Gummi, Kunststoffe
Issue number5
Publication statusPublished - 2014


  • IR-94284
  • METIS-306264

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