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Journal of Thermal Analysis and Calorimetry

, Volume 112, Issue 2, pp 703–711 | Cite as

Thermal behaviour of poly(dimethylsiloxane) hybrid silicas prepared by radiation grafting

  • Ornella Ursini
  • Giancarlo Angelini
  • Edo Lilla
  • Donatella Capitani
  • Franco Cataldo
  • Claudio Villani
Article

Abstract

This paper reports our investigation regarding the thermal properties of new polymer-silica hybrid materials obtained by radiation grafting. The polymer poly(dimethylsiloxane),bis(3-aminopropyl)terminated is γ-grafted on a silica gel surface. The thermal behaviour of γ-grafted hybrid materials reveals remarkable differences compared to the thermal behaviour of physically adsorbed polymers. These differences allow us to assess the ability of γ-rays to produce a polymer chemically bonded on a silica surface. The chemical bonds formed by irradiation give to the polymer a high conformational stability confirmed by DTA analysis.

Keywords

Hybrid silica material Thermogravimetric analysis Radiation grafting Poly-dimethylsiloxane 

Notes

Acknowledgements

This work was supported by the National Research Council of Italy.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  • Ornella Ursini
    • 1
  • Giancarlo Angelini
    • 1
  • Edo Lilla
    • 1
  • Donatella Capitani
    • 1
  • Franco Cataldo
    • 2
  • Claudio Villani
    • 3
  1. 1.Institute of Chemical MethodologiesCNRMonterotondoItaly
  2. 2.Lupi Chemical Research InstituteRomeItaly
  3. 3.Dipartimento di Chimica e Tecnologie del FarmacoUniversità “La Sapienza”RomeItaly

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