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Abstract <p>Thiol-siloxane oligomers have been produced via the sol-gel process using three different catalysts: barium hydroxide monohydrate, trimethoxyboroxine, and an ammonium salt based on triethylamine and boric acid. The synthesized oligomers have been studied by NMR spectroscopy and mass spectrometry. It has been found that the topology of the resulting oligomers differs depending on the type of catalyst used, and these oligomers are resistant to hydrolytic condensation. Elastic films of hybrid organic-inorganic polymer based on the tetraacrylate monomer and the thiol-siloxane oligomers have been obtained via photopolymerization. The viscoelastic and optical properties of the photopolymer films have been studied, and it has been revealed that the topology of the thiol-siloxane oligomers affects the properties of the hybrid polymer. The values of the modulus of elasticity (0.37–0.48 GPa), glass transition temperature (53–72°C), and refractive index (1.58) of the photocured hybrid films based on different thiol-siloxane oligomers have been determined.</p>

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Influence of the Type of Catalyst of Non-hydrolytic Condensation on the Structure of Phenyl-Thiol-Siloxane Oligomers and the Properties of the Photocured Acrylate-Phenyl-Thiol-Siloxane Materials

  • 期刊论文

  • 发表日期：

    2026年2月1日

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  • D. I. Derevyanko,
  • S. I. Aliev,
  • V. V. Shelkovnikov,
  • I. K. Shundrina,
  • N. A. Orlova,
  • A. A. Chernonosov,
  • A. V. Lastovka,
  • D. E. Kapustina

摘要

Abstract

Thiol-siloxane oligomers have been produced via the sol-gel process using three different catalysts: barium hydroxide monohydrate, trimethoxyboroxine, and an ammonium salt based on triethylamine and boric acid. The synthesized oligomers have been studied by NMR spectroscopy and mass spectrometry. It has been found that the topology of the resulting oligomers differs depending on the type of catalyst used, and these oligomers are resistant to hydrolytic condensation. Elastic films of hybrid organic-inorganic polymer based on the tetraacrylate monomer and the thiol-siloxane oligomers have been obtained via photopolymerization. The viscoelastic and optical properties of the photopolymer films have been studied, and it has been revealed that the topology of the thiol-siloxane oligomers affects the properties of the hybrid polymer. The values of the modulus of elasticity (0.37–0.48 GPa), glass transition temperature (53–72°C), and refractive index (1.58) of the photocured hybrid films based on different thiol-siloxane oligomers have been determined.