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Materials 2013, 6(6), 2119-2129; doi:10.3390/ma6062119
Article

Effect of Core–Shell Ceria/Poly(vinylpyrrolidone) (PVP) Nanoparticles Incorporated in Polymer Films and Their Optical Properties

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National Institute of Advanced Industrial Science and Technology (AIST), Shimo-shidami, Moriyama-ku, Nagoya 463-8560, Japan
* Author to whom correspondence should be addressed.
Received: 8 April 2013 / Revised: 10 May 2013 / Accepted: 13 May 2013 / Published: 24 May 2013
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Abstract

We fabricated hybrid films of pentaerythritol triacrylate (PETA) with core–shell ceria/poly(vinylpyrrolidone) (PVP) nanoparticles, which consist of cerium oxide as the core and PVP as the shell, and investigated the film optical properties. In this study, we used ceria/PVP nanoparticles with average diameters of 37, 49 and 91 nm. We obtained translucent films consisting of PETA with core–shell ceria/PVP nanoparticles. The core–shell ceria/PVP nanoparticles can reduce the transmittance of near-ultraviolet light. The transmittance of visible light and haze values depends not only on the thickness of the films, but also on the average diameter of the nanoparticles. A SEM observation and the optical analyses prove that the core–shell ceria/PVP nanoparticles do not aggregate into the PETA matrix.
Keywords: core–shell nanoparticles; cerium oxide; poly(vinylpyrrolidone); pentaerythritol triacrylate; UV-blocking film; haze core–shell nanoparticles; cerium oxide; poly(vinylpyrrolidone); pentaerythritol triacrylate; UV-blocking film; haze
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Itoh, T.; Uchida, T.; Izu, N.; Matsubara, I.; Shin, W. Effect of Core–Shell Ceria/Poly(vinylpyrrolidone) (PVP) Nanoparticles Incorporated in Polymer Films and Their Optical Properties. Materials 2013, 6, 2119-2129.

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