Miniemulsion polymerization of styrene. I. Preparation by redox initiator and new agitation mixer

Cheng Chien Wang, Nan San Yu, Chuh-Yung Chen, Jen Feng Kuo

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Miniemulsion polymerization is usually conducted by a two-stage process, miniemulsion and polymerization, where the reactants are first processed using a high shearing machine, then transferred to a reactor to polymerize with magnetic stirring. However, the particles size distributions obtained usually are broad and skewed to small sizes owing to micelle and homogeneous nucleation in the aqueous solution. In this study, a saw-toothed blade mixer was successfully used for miniemulsion polymerization with a rotating rate over 500 rpm. The addition sequence of the components also affected the miniemulsion process in this system. The best result was obtained when the surfactant and cetyl alcohol were first dissolved in water and then the styrene was mixed in. Furthermore, a fast dissociated redox initiator system (cumene hydroperoxide/Fe2+/ethylenediaminetetraacetic acid-disodium salt/sodium formaldehyde sulfoxylate) was used to prepare miniemulsion polymer and monodisperse polystyrene.

Original languageEnglish
Pages (from-to)493-501
Number of pages9
JournalJournal of Applied Polymer Science
Volume60
Issue number4
DOIs
Publication statusPublished - 1996 Apr 25

Fingerprint

Styrene
Polymerization
Shearing machines
Polystyrenes
Ethylenediaminetetraacetic acid
Micelles
Formaldehyde
Surface-Active Agents
Edetic Acid
Particle size analysis
Polymers
Alcohols
Surface active agents
Nucleation
Salts
Sodium
Water
Oxidation-Reduction

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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abstract = "Miniemulsion polymerization is usually conducted by a two-stage process, miniemulsion and polymerization, where the reactants are first processed using a high shearing machine, then transferred to a reactor to polymerize with magnetic stirring. However, the particles size distributions obtained usually are broad and skewed to small sizes owing to micelle and homogeneous nucleation in the aqueous solution. In this study, a saw-toothed blade mixer was successfully used for miniemulsion polymerization with a rotating rate over 500 rpm. The addition sequence of the components also affected the miniemulsion process in this system. The best result was obtained when the surfactant and cetyl alcohol were first dissolved in water and then the styrene was mixed in. Furthermore, a fast dissociated redox initiator system (cumene hydroperoxide/Fe2+/ethylenediaminetetraacetic acid-disodium salt/sodium formaldehyde sulfoxylate) was used to prepare miniemulsion polymer and monodisperse polystyrene.",
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Miniemulsion polymerization of styrene. I. Preparation by redox initiator and new agitation mixer. / Wang, Cheng Chien; Yu, Nan San; Chen, Chuh-Yung; Kuo, Jen Feng.

In: Journal of Applied Polymer Science, Vol. 60, No. 4, 25.04.1996, p. 493-501.

Research output: Contribution to journalArticle

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