Fabrication of sub-micrometer-sized jingle bell-shaped hollow spheres from multilayered core-shell particles

Shunchao Gu, Tomohiro Kondo, Eiichi Mine, Daisuke Nagao, Yoshio Kobayashi, Mikio Konno

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Jingle bell-shaped hollow spheres were fabricated starting from multilayered particles composed of a silica core, a polystyrene inner shell, and a titania outer shell. Composite particles of silica core-polystyrene shell, synthesized by coating a 339-nm-sized silica core with a polystyrene shell of thickness 238 nm in emulsion polymerization, were used as core particles for a succeeding titania-coating. A sol-gel method was employed to form the titania outer shell with a thickness of 37 nm. The inner polystyrene shell in the multilayered particles was removed by immersing them in tetrahydrofuran. These successive procedures could produce jingle bell-shaped hollow spheres that contained a silica core in the titania shell.

Original languageEnglish
Pages (from-to)281-283
Number of pages3
JournalJournal of Colloid And Interface Science
Volume279
Issue number1
DOIs
Publication statusPublished - 2004 Nov 1

Keywords

  • Core-shell
  • Jingle bell-shaped hollow sphere
  • Multilayered particle
  • Polystyrene
  • Silica
  • Sol-gel method
  • Titania

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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