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

Toshio Itoh; Toshio Uchida; Noriya Izu; Ichiro Matsubara; Woosuck Shin

doi:10.3390/ma6062119

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

Materials (Basel). 2013 May 24;6(6):2119-2129. doi: 10.3390/ma6062119.

Authors

Toshio Itoh¹, Toshio Uchida², Noriya Izu³, Ichiro Matsubara⁴, Woosuck Shin⁵

Affiliations

¹ National Institute of Advanced Industrial Science and Technology (AIST), Shimo-shidami, Moriyama-ku, Nagoya 463-8560, Japan. itoh-toshio@aist.go.jp.
² National Institute of Advanced Industrial Science and Technology (AIST), Shimo-shidami, Moriyama-ku, Nagoya 463-8560, Japan. to-uchida@aist.go.jp.
³ National Institute of Advanced Industrial Science and Technology (AIST), Shimo-shidami, Moriyama-ku, Nagoya 463-8560, Japan. n-izu@aist.go.jp.
⁴ National Institute of Advanced Industrial Science and Technology (AIST), Shimo-shidami, Moriyama-ku, Nagoya 463-8560, Japan. matsubara-i@aist.go.jp.
⁵ National Institute of Advanced Industrial Science and Technology (AIST), Shimo-shidami, Moriyama-ku, Nagoya 463-8560, Japan. w.shin@aist.go.jp.

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: UV-blocking film; cerium oxide; core–shell nanoparticles; haze; pentaerythritol triacrylate; poly(vinylpyrrolidone).