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Preparation of monodisperse polystyrene particles by radiation-induced dispersion polymerization using waterborne polyurethane as a stabilizer

  • Guixi Zhang
  • , Zhicheng Zhang*
  • , Changqi Xu
  • , Qiang Ye
  • *Corresponding author for this work
  • University of Science and Technology of China

Research output: Contribution to journalArticlepeer-review

Abstract

Novel waterborne polyester polyurethane (WPU) was synthesized and firstly applied to dispersion polymerization of styrene (PSt). Monodisperse PSt particles were successfully prepared by radiation-induced dispersion polymerization, after dispersed in ethanol-water medium and stabilized by WPU at room temperature. The conversion-time curve was investigated, and the grafting reaction between WPU and PSt was investigated via FT-IR, XPS and 1H NMR spectrum. Furthermore, the grafting efficiency of WPU (GWPU, ratio of grafted WPU versus the total content of WPU in the system) was calculated via 1H NMR spectrum. It shows when vinyl groups are attached to WPU molecules, the diameter of PSt particles decrease.

Original languageEnglish
Pages (from-to)72-77
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume276
Issue number1-3
DOIs
StatePublished - 15 Mar 2006
Externally publishedYes

Keywords

  • Dispersion polymerization
  • Grafting reaction
  • Radiation
  • Styrene
  • Waterborne polyurethane

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