Bioactive Gel Coatings Derived from Vinyltrimethoxysilane

Kanji Tsuru, Satoshi Hayakawa, Chikara Ohtsuki, Akiyoshi Osaka

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An ethanol (EtOH) solution of polymerized vinyltrimethoxysilane (VTMS), about 20-mers, was mixed with an aqueous solution of calcium acetate (Ca(OAc)2) and refluxed in N2 for 1 h to give sols of a typical composition VTMS : H2O : EtOH : Ca(OAc)2 = 1 : 9 : 8 : 0.05 (mol). Homogeneous films could be produced, by dip-coating, on Nylon6® and soda-lime glass, but not on polypropylene or polytetrafluoroethylene. The gel films did not deposit apatite within 14 days of soaking in a simulated body fluid whereas films abraded with emery paper as well as bulk gels deposited apatite on the surfaces within 7 days, indicating the present gel was suitable for bioactive coatings on Nylon6®.

Original languageEnglish
Pages (from-to)237-240
Number of pages4
JournalJournal of Sol-Gel Science and Technology
Issue number1-3
Publication statusPublished - 1999



  • Apatite
  • Bioactivity
  • Ca incorporation
  • Coating
  • Silianol groups

ASJC Scopus subject areas

  • Ceramics and Composites

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