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Thermooxidative stability of polymethyl methacrylate containing nanoparticles of silica/titania and silica/zirconia

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Abstract

The influence of silica/titania and silica/zirconia nanoparticles on thermooxidative degradation of PMMA was studied by non-isothermal thermogravimetry. Kinetic parameters describing the length of the oxidation induction periods were obtained from the treatment of the dependence of oxidation onset temperature on heating rate. Using these parameters, the protection factors of nanoparticles have been calculated. It was found that SiO2/TiO2 nanoparticles increase the thermooxidation stability of PMMA where the stabilizing effect, expressed as the protection factor, depends on temperature only slightly. The stabilizing effect of SiO2/ZrO2 is much stronger than that of SiO2/TiO2 and decreases with increasing temperature.

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Authors and Affiliations

  1. Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovak Republic

    Peter Šimon & Dušan Bakoš

  2. Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai, 200433, China

    Wei Zhong

  3. Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 612 00, Brno, Czech Republic

    David Hynek

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  1. Peter Šimon
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  2. Wei Zhong
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  3. Dušan Bakoš
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Correspondence to Peter Šimon.

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Šimon, P., Zhong, W., Bakoš, D. et al. Thermooxidative stability of polymethyl methacrylate containing nanoparticles of silica/titania and silica/zirconia. Chem. Pap. 62, 176–180 (2008). https://doi.org/10.2478/s11696-008-0008-0

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  • DOI: https://doi.org/10.2478/s11696-008-0008-0

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