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Colloid and Polymer Science

, Volume 286, Issue 13, pp 1569–1574 | Cite as

Preparation and properties of fluoroalkyl end-capped vinyltrimethoxysilane oligomeric nanoparticles—A new approach to facile creation of a completely superhydrophobic coating surface with these nanoparticles

  • Hideo Sawada
  • Toshihiro Suzuki
  • Hiroki Takashima
  • Katsuhisa Takishita
Short Communication

Abstract

Novel fluoroalkyl end-capped vinyltrimethoxysilane oligomeric nanoparticles were prepared by the hydrolysis of the corresponding oligomer under alkaline conditions. The size of fluorinated nanoparticles thus obtained is of submicrometer levels and is not sensitive to the refractive indices of a variety of solvents; however, the turbidity of the dispersed fluorinated nanoparticles is extremely sensitive to the refractive indices of these solvents. In particular, the solvents of which the refractive indices are from 1.378 to 1.408 were found to afford the transparent colorless dispersed particle solutions. More interestingly, the modified glass surface treated with fluorinated nanoparticles exhibited a completely superhydrophobic characteristic (a water contact angle: 180°) with a nonwetting property against water droplets.

Keywords

Superhydrophobicity Oleophobicity Refractive index Nanoparticle Dispersibility Surface modification SEM AFM 

Notes

Acknowledgement

Thanks are due to Keyence Corp. for measurements of AFM.

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Hideo Sawada
    • 1
  • Toshihiro Suzuki
    • 1
  • Hiroki Takashima
    • 1
    • 2
  • Katsuhisa Takishita
    • 2
  1. 1.Department of Frontier Materials Chemistry, Graduate School of Science and TechnologyHirosaki UniversityHirosakiJapan
  2. 2.Ishihara Chemical Co., Ltd.KobeJapan

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