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TiO2 nanocomposites with high refractive index and transparency

Tao, Peng, Li, Yu, Rungta, Atri, Viswanath, Anand, Gao, Jianing, Benicewicz, Brian C., Siegel, Richard W., Schadler, Linda S.·2011·Journal of Materials Chemistry

Abstract

Transparent polymer nanocomposites with high refractive index were prepared by grafting polymer chains onto anatase TiO2 nanoparticlesvia a combination of phosphate ligand engineering and alkyne-azide “click” chemistry. Highly crystalline TiO2 nanoparticles with 5 nm diameter were synthesized by a solvothermal method and used as high refractive index filler. The synthesized phosphate-azide ligand anchors strongly onto the TiO2 nanoparticle surface and the azide end group allows for attachment of poly(glycidyl methacrylate) (PGMA) polymer chains through an alkyne-azide “click” reaction. The refractive index of the composite material increased linearly from 1.5 up to 1.8 by increasing the loading of TiO2 particles to 30 vol % (60 wt %). UV-vis spectra show that the nanocomposites exhibited a transparency around 90% throughout the visible light range. It was also found that the PGMA-grafted TiO2 nanoparticles can be well dispersed into a commercial epoxy resin, forming transparent high refractive index TiO2-epxoy nanocomposites.

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Metadata

Authors
Tao, P., Li, Y., Rungta, A., Viswanath, A., Gao, J., Benicewicz, B. C., Siegel, R. W., & Schadler, L. S.
Venue
Journal of Materials Chemistry
Published
2011
Volume
21
Issue
46
Pages
18623
ISSN
  • 0959-9428 (ISSN-L)
  • 1364-5501
OpenAlex
W2129396599
Cited by
303
References
2
FWCI
13.64
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: TiO2 nanocomposites with high refractive index and transparency. https://app.cochat.ai/papers/10.1039/c1jm13093e
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Tao, P., Li, Y., Rungta, A., Viswanath, A., Gao, J., Benicewicz, B. C., Siegel, R. W., & Schadler, L. S. (2011). TiO2 nanocomposites with high refractive index and transparency. Journal of Materials Chemistry. https://doi.org/10.1039/c1jm13093e

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