Abstract
Graphene oxide (GO) is used as a stabilizer in the Pickering emulsion polymerization of methyl methacrylate (MMA) to prepare PMMA/GO nanocomposites. Transmission electron microscope studies of the emulsion polymerization products showed that the average diameter of nanocomposite particles was about 150 nm, the transparent GO flakes covered the surface of the particles, and were well dispersed in polymer matrix. The influence of GO on the thermal stability of PMMA was investigated by thermogravimetry analysis and differential scanning calorimetry. The results showed that the thermal stability and the glass transition temperature (T g) of PMMA/GO nanocomposites were improved obviously compared with PMMA. The apparent activation energy (E a) for the degradation process of PMMA/GO nanocomposites was evaluated by Kissinger method, which indicated that their E a s were much higher than those of PMMA both in nitrogen and air atmosphere.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (No. 20473038), the Natural Science Foundation of the Education Committee of Jiangsu province (No. 04KJB150066), and a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).
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Huang, Y., Wang, X., Jin, X. et al. Study on the PMMA/GO nanocomposites with good thermal stability prepared by in situ Pickering emulsion polymerization. J Therm Anal Calorim 117, 755–763 (2014). https://doi.org/10.1007/s10973-014-3794-3
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DOI: https://doi.org/10.1007/s10973-014-3794-3