Hollow microspheres with covalent-bonded colloidal and polymeric shell by Pickering emulsion polymerization

Dezhong Yin, Qiuyu Zhang, Changjie Yin, Xingbo Zhao, Hepeng Zhang

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Hollow microspheres with SiO 2/polymer binary shell were fabricated from Pickering emulsion stabilized solely by methacryloxypropyltrimethoxysilane-modified SiO 2 particles, and were characterized by optical microscopy, scanning electron microscopy, Fourier transformation infrared spectrum, thermogravimetric analysis (TGA), and energy dispersive X-ray spectroscopy. The microspheres were templated by the Pickering droplets and the inner structure was affect by the proportion of crosslinking reagent. TGA result indicated that 60.3% of polymer in the shell was connected with SiO 2 by covalent bond which was formed by copolymerization of styrene and the reactive C=C group on SiO 2 stabilizer.

Original languageEnglish
Pages (from-to)273-277
Number of pages5
JournalPolymers for Advanced Technologies
Volume23
Issue number3
DOIs
StatePublished - Mar 2012

Keywords

  • Hollow microspheres
  • Phase separation
  • Pickering emulsion polymerization

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