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Formation of monodisperse poly(methyl methacrylate) particles by radiation-induced dispersion polymerization. II. Particle size and size distribution

  • Qiang Ye*
  • , Zhicheng Zhang
  • , Xuewu Ge
  • , Yonghong Ni
  • , Mozhen Wang
  • *Corresponding author for this work
  • University of Science and Technology of China

Research output: Contribution to journalArticlepeer-review

Abstract

Micron-sized poly(methyl methacrylate) particles were produced directly by radiation-induced dispersion polymerization in aqueous alcohol media using poly(N-vinylpyrrolidone) as a steric stabilizer at room temperature(10-35 °C). This method takes advantages of the specialities of radiation induction, and highly uniform polymer microspheres were obtained with high conversion. The gel effect was found from the polymerization kinetics curves. The number of nuclei produced in the early stage of the polymerization was found to be constant during the remainder of the polymerization. The effects of various polymerization parameters, such as irradiation dose rate, monomer concentration, stabilizer content, medium polarity, and polymerization temperature, on the particle size and the size distribution were investigated systematically.

Original languageEnglish
Pages (from-to)1091-1096
Number of pages6
JournalColloid and Polymer Science
Volume280
Issue number12
DOIs
StatePublished - 2002
Externally publishedYes

Keywords

  • Monodisperse particles
  • Particle size and its distribution
  • Poly(methyl methacrylate)
  • Radiation-induced dispersion polymerization

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