Microemolsioes: A medium for polymerization reactions

K. M. Lusvardi, K. V. Schubert, E. W. Kaler

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Aqueous and nonaqueous microemulsions containing either of the monomers styrene or hexyl methacrylate polymerize when initiated with potassium persulfate. Reactions in both types of microemulsions lead to stable, bluish dispersions of latex panicles with diameters ranging from 40 to 90 nm. By substituting formamide for water, one can investigate the effect of the monomer solubility in the continuous domain on the microemulsion polymerization mechanism in a way independent of the monomer type. When the monomer solubility in the polar domain is high, the latex particles are larger and nave a larger number of polymer chains than when the monomer solubility is low. If the monomer solubility in the continuous aomain is greater than the overall monomer concentration in the microemulsion, the reaction mechanism shifts from that of a microemulsion polymerization to one of a solution polymerization in the presence of empty micelles.

Original languageEnglish (US)
Pages (from-to)373-379
Number of pages7
JournalBerichte der Bunsengesellschaft/Physical Chemistry Chemical Physics
Volume100
Issue number3
StatePublished - Dec 1 1996

Keywords

  • Colloides
  • Micelles
  • Microemulsions
  • Polymers

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