Journal of Sol-Gel Science and Technology

, Volume 63, Issue 3, pp 495–500 | Cite as

In situ sol–gel preparation of high transparent fluorinated polyimide/nano-MgO hybrid films

  • Junwen Lu
  • Wei Wang
  • Aiqing Zhang
  • Fatang Tan
  • Xueliang Qiao
Original Paper


Hybrid nanocomposite films of magnesium oxide (MgO) in fluorinated polyimide (PI) from 4, 4′-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) and 4, 4′-Diaminodiphenyl ether (ODA) have been successfully fabricated via an in situ sol–gel polymerization technique. The MgO content in hybrid films was varied from 0 to 5 wt%. The hybrid films were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), ultraviolet–visible (UV–Vis) spectroscopy and thermal gravimetric analyses (TGA). The results of FTIR, XRD and FESEM showed that the MgO nanoparticles were well dispersed in the polymer matrix due to the coordination between the carbonyl group of polymers and Mg atom, and the as-prepared hybrid films exhibited excellent optical transparency in the visible region and good UV-shielding properties in the UV region. Although the thermal stability of the hybrid films is slight inferior to pure PI, it is still good for the practical application below the temperature of 300 °C.


Polyimides MgO Nanocomposites In situ sol–gel 



The authors gratefully acknowledge the support from the National Natural Science Foundation of China (No. 50902054), the Fundamental Research Funds for the Central Universities (No. 2012QN043), and the Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, South-Central University for Nationalities (No. CHCL09005). The authors also acknowledge the experimental help from Huazhong University of Science & Technology Analytical and Testing Center.


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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Junwen Lu
    • 1
  • Wei Wang
    • 1
  • Aiqing Zhang
    • 2
  • Fatang Tan
    • 1
  • Xueliang Qiao
    • 1
  1. 1.State Key Laboratory of Material Processing and Die & Mould TechnologyHuazhong University of Science and TechnologyWuhanPeople’s Republic of China
  2. 2.Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of EducationSouth-Central University for NationalitiesWuhanPeople’s Republic of China

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