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Abstract <p>Catalytic hydroamination was proposed as a sustainable solvent-free method for cross-linking two-component silicone mixtures. Cross-linking reactions of amino- and vinyl-containing polysiloxanes were conducted at 120°C in air using titanocene, zirconocene, and hafnocene dichlorides as catalysts. Cross-linking patterns were successfully confirmed by FTIR and solid-state NMR spectroscopies (<sup>1</sup>H, <sup>13</sup>C{<sup>1</sup>H}, and <sup>29</sup>Si). Metallocene catalysts allow obtaining high-quality, colorful silicone rubbers without visible mechanical defects. Catalytic hydroamination shows potential as a sustainable, efficient, and versatile method for silicone cross-linking.</p>

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Catalytic Hydroamination as a Solvent-Free Method for Silicone Materials Obtaining

  • 期刊论文

  • 发表日期：

    2025年10月31日

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  • Konstantin V. Deriabin,
  • Vadim P. Boyarskiy,
  • Regina M. Islamova

摘要

Abstract

Catalytic hydroamination was proposed as a sustainable solvent-free method for cross-linking two-component silicone mixtures. Cross-linking reactions of amino- and vinyl-containing polysiloxanes were conducted at 120°C in air using titanocene, zirconocene, and hafnocene dichlorides as catalysts. Cross-linking patterns were successfully confirmed by FTIR and solid-state NMR spectroscopies (1H, 13C{1H}, and 29Si). Metallocene catalysts allow obtaining high-quality, colorful silicone rubbers without visible mechanical defects. Catalytic hydroamination shows potential as a sustainable, efficient, and versatile method for silicone cross-linking.