• Title/Summary/Keyword: titania nanorods

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Electrohydrodynamic Instability at Surface of Block Copolymer/Titania Nanorods Thin Film (타이타니아 나노막대가 포함된 블록 공중합체 박막 표면의 전기장하에서의 불안정성 거동 연구)

  • Bae, Joonwon
    • Applied Chemistry for Engineering
    • /
    • v.27 no.2
    • /
    • pp.205-209
    • /
    • 2016
  • The influence of titania nanorods with an average diameter of 10 nm and an average length of 30 nm on the electrohydrodynamic instability of block copolymer (polystyrene-b-poly(2-vinylpyridine)) thin film was investigated in this article. The presence of titania nanorods increased the dielectric constant of the film, which resulted in a systematic reduction in the wavelength of the surface instability. Cross-sectional transmission electron microscopy analysis indicated that the migration/aggregation of titania nanorods did not occur as a result of the applied electric field. This work can provide a simple route to the pattern formation using electrohydrodynamic instability with an aid of nanoparticles.