Synthesis of highly crosslinked monodisperse polymer particles: Effect of reaction parameters on the size and size distribution

J. Choi, S. Y. Kwak, S. Kang, Sang-Soo Lee, M. Park, S. Lim, J. Kim, C. R. Choe, S. I. Hong

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Monodisperse polystyrene particles crosslinked with different concentrations of divinylbenzene were synthesized in the 3.2-9.1 μm size range by dispersion polymerization in an isopropyl alcohol/toluene mixed-dispersion medium with poly(N-vinylpyrrolidone) as a steric stabilizer and 2,2′-azobisisobutyronitrile as a radical initiator. The effects of the reaction parameters such as the crosslinking agent concentration, media solvency (controlled by varying the amount of toluene addition), the initiator concentration, and the stabilizer concentration on the particle size and size distribution were investigated with reference particles with a monodisperse size distribution and crosslinked by 1.5 wt % divinylbenzene. The appropriate increase in media solvency was a prerequisite for preparing crosslinked particles without coagulated and/or odd-shaped particles. The investigation of the effects of the polymerization parameters also shows that only specific sets of conditions produce particles with a monodisperse size distribution. The glass-transition temperatures of the particles increased with increasing divinylbenzene concentration.

Original languageEnglish
Pages (from-to)4368-4377
Number of pages10
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume40
Issue number23
DOIs
Publication statusPublished - 2002 Oct 10

Fingerprint

divinyl benzene
Polymers
Toluene
Polymerization
2-Propanol
Polystyrenes
Crosslinking
Alcohols
Particle size

Keywords

  • Crosslinking
  • Dispersion polymerization
  • Particle size distribution
  • Polymerization parameter effect
  • Polystyrene

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

Synthesis of highly crosslinked monodisperse polymer particles : Effect of reaction parameters on the size and size distribution. / Choi, J.; Kwak, S. Y.; Kang, S.; Lee, Sang-Soo; Park, M.; Lim, S.; Kim, J.; Choe, C. R.; Hong, S. I.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 40, No. 23, 10.10.2002, p. 4368-4377.

Research output: Contribution to journalArticle

Choi, J. ; Kwak, S. Y. ; Kang, S. ; Lee, Sang-Soo ; Park, M. ; Lim, S. ; Kim, J. ; Choe, C. R. ; Hong, S. I. / Synthesis of highly crosslinked monodisperse polymer particles : Effect of reaction parameters on the size and size distribution. In: Journal of Polymer Science, Part A: Polymer Chemistry. 2002 ; Vol. 40, No. 23. pp. 4368-4377.
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