Investigation of the curing mechanism in the GPTS/APTS binder system

D. H. Kim, J. H. Moon, D. W. Lee, Y. G. Shul

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The acid catalyzed sol-gel reaction in the mixed binder system, 3-glycidoxypropyltrimethoxysilane (GPTS)/3-aminopropyltriethoxysilane (APTS) was investigated and one step and two step synthesis process were compared. Hydrolysis product was observed using the 1H, 13C NMR and Raman spectra. Especially, based on the Raman spectra, epoxy ring opening was observed, varying the ratio of GPTS to APTS. The two step process made clear sol, while the one step process resulted in a milky suspension. According to the Raman spectra, the epoxy ring opening reaction kinetics proceeded slower in the two step process than one step process. Throughout the two step process, it was possible to apply the binder for the coating of substrate.

Original languageEnglish
Pages (from-to)403-406
Number of pages4
JournalJournal of Sol-Gel Science and Technology
Issue number1-3
Publication statusPublished - 2003 Jan

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Biomaterials
  • Condensed Matter Physics
  • Materials Chemistry


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