Abstract
This paper presents a successful synthesis of transparent organic–inorganic nanocomposites from poly(arylene ether ketone) (PAEK)-based matrix polymer and BaTiO3 nanoparticles. The dispersibility of nanoparticles was significantly improved by both the introduction of phosphonic acid moiety into the polymer chain and the organic modification of the nanoparticle surface. The structure of phosphonic-acid-modified PAEK polymer was studied by gel permeation chromatography, 31P nuclear magnetic resonance spectroscopy and X-ray fluorescence spectroscopy. Thermal properties of nanocomposites were studied by thermogravimetry and differential scanning calorimetry. Optical clarity of nanocomposites was evaluated by a hazemeter and regular transmittance spectroscopy. Dispersion of nanoparticles was also demonstrated by transmission electron microscopic observation. Fourier transform infrared analysis was carried out to investigate the interaction between the polymer matrix and nanoparticles. Refractive indices of the obtained transparent nanocomposites, which contain up to 44.1 wt% of nanoparticles, were measured. A high refractive index of 1.72 at 589 nm was achieved.
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Acknowledgements
Transmission electron microscopy observation of nanocomposite samples was carried out by Dr Keiko Nishikubo at National Institute of Advanced Industrial Science and Technology. Experimental support by Ms Ryoko Tsuru and Ms Reiko Hayashi is also acknowledged.
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Imai, Y., Terahara, A., Hakuta, Y. et al. Synthesis and characterization of high refractive index nanoparticle/poly(arylene ether ketone) nanocomposites. Polym J 42, 179–184 (2010). https://doi.org/10.1038/pj.2009.322
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DOI: https://doi.org/10.1038/pj.2009.322
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