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Colloid and Polymer Science

, Volume 287, Issue 2, pp 139–146 | Cite as

Crystallization of titania ultra-fine particles from peroxotitanic acid in aqueous solution in the present of polymer and incorporation into poly(methyl methacylate) via dispersion in organic solvent

  • Shuhei Yamada
  • Zhifeng Wang
  • Emiko Mouri
  • Kohji Yoshinaga
Original Contribution

Abstract

We report a novel strategy for incorporation of titanium dioxide (TiO2) particles, which were crystallized from peroxotitanic acid in the presence of hydrophilic polymer by hydrothermal treatment in aqueous solution, into poly(methyl methacrylate) (PMMA) via dispersion into chloroform. Dispersion of TiO2 particles into chloroform was achieved by solvent change from water to chloroform in aid of amphiphilic polymer dispersant, poly(N-vinyl pyrrolidone) (PVP), poly(N-vinyl pyrrolidone-co-methyl methacrylate) (PVP-co-PMMA), poly(N-vinyl pyrrolidone-block-methyl methacrylate) (PVP-b-PMMA) through azeotropical removal of water. Incorporation of TiO2 particles into PMMA was carried out by a casting process of a mixture of TiO2 particles dispersed with PVP154-b-PMMA156 in chloroform and PMMA on a glass substrate. Resultant hybrid film containing TiO2 less than 10 wt.% showed high transparency in visible region attributable to homogeneous dispersion into PMMA matrix. The refractive index of the hybrid films increased with TiO2 content and agreed with the calculated values.

Keywords

Titania Particle Dispersion Dispersant Refractive index 

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Shuhei Yamada
    • 1
  • Zhifeng Wang
    • 2
  • Emiko Mouri
    • 1
  • Kohji Yoshinaga
    • 1
    • 3
  1. 1.Department of Applied Chemistry, Faculty of EngineeringKyushu Institute of TechnologyKitakyushuJapan
  2. 2.College of Chemistry and Chemical EngineeringYangzhou UniversityYangzhouChina
  3. 3.Department of Applied ChemistryKyushu Institute of TechnologyKitakyushuJapan

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