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The role of Zirconium as thermal stabilizer of PDMS–TEOS hybrids

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Abstract

Hybrid materials were prepared by sol–gel method using Tetraethylortosilicate and Polydimethylsiloxane silanol terminated with the addition of small contents of Zirconium Propoxide ≤5 wt%. The thermal stability of the prepared samples was studied by Infra-red spectroscopy, 29Si Nuclear Magnetic Resonance, Thermal Analysis and Scanning Electron Microscopy. All samples were monolithic after drying at 120 °C. After heat treatment at 400 °C the samples prepared with 0 wt% in Zirconium Propoxide present high porosity. It was found that the content in Zirconium Propoxide is directly related with the thermal stability of the hybrid materials prepared in this study.

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Acknowledgements

The authors wish to acknowledge the Chemistry Department of Aveiro University for access to IR and NMR facilities.

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Authors and Affiliations

  1. Department of Glass and Ceramics Engineering, CICECO, Aveiro University, 3810-193, Aveiro, Portugal

    M. M. Portela Marques & I. M. Miranda Salvado

  2. Physics and Accelerators Unit, Nuclear and Technological Institute, E.N. 10, 2686-953, Sacavém, Portugal

    F. M. A. Margaça & L. M. Ferreira

Authors
  1. M. M. Portela Marques
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  2. I. M. Miranda Salvado
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  3. F. M. A. Margaça
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  4. L. M. Ferreira
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Correspondence to I. M. Miranda Salvado.

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Portela Marques, M.M., Miranda Salvado, I.M., Margaça, F.M.A. et al. The role of Zirconium as thermal stabilizer of PDMS–TEOS hybrids. J Therm Anal Calorim 100, 557–561 (2010). https://doi.org/10.1007/s10973-009-0180-7

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  • DOI: https://doi.org/10.1007/s10973-009-0180-7

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