<b>Design of Transparent Hybrid Materials Using ZrO</b><b><sub>2</sub></b><b> Nano-Particles as </b><b>Multivinyl Crosslinking Agent </b>

DOI Web Site 2 Citations
  • ICHIJO Yusuke
    Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University
  • MATSUMOTO Mutsumi
    Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University
  • HAKOZAKI Sho
    Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University
  • ENOMOTO Kazushi
    Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University
  • SAITO Yuta
    Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University
  • NARUMI Atsushi
    Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University
  • KAWAGUCHI Seigou
    Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University

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Other Title
  • <b>ZrO</b><b><sub>2 </sub></b><b>ナノ微粒子をマルチビニル架橋剤として用いた </b><b>透明ハイブリッド材料の設計 </b>
  • ZrO₂ナノ微粒子をマルチビニル架橋剤として用いた透明ハイブリッド材料の設計
  • ZrO ₂ ナノ ビリュウシ オ マルチビニル カケハシザイ ト シテ モチイタ トウメイ ハイブリッド ザイリョウ ノ セッケイ

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Abstract

A novel surface treatment method of ZrO2 nanoparticles with 8 nm in a diameter and their hybridization with polymers have been studied to prepare the transparent organic－inorganic nano-hybrid materials. The surface treatment was achieved by direct transfer of ZrO2 nanoparticles from aqueous phase to toluene phase without any coagulation. The method was successfully attained by adding small amount of carboxylic acid as the surface treatment agent, toluene, and methanol to ZrO2 aqueous dispersion, followed by successive evaporations and solvent replacements to toluene dispersion. Transparent ZrO2 toluene dispersion was obtained, when adding the carboxylic acids with the number of carbon atom higher than 4. The surface modified ZrO2 particles were nano-dispersible into several organic solvents and vinyl monomers to afford transparent solutions. Methacrylate-functionalized ZrO2 nano-particles were copolymerized with styrene or methyl methacrylate to produce optically transparent thermosetting nano-composite materials with a refractive index much higher than the original polymer. The network structures produced by copolymerization of vinyl monomer with methacrylate-functionalized ZrO2 nano-particles as multivinyl crosslinking agent play an important role to prevent the coagulation of ZrO2 particles.

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