Kinetic study of the mini-emulsion polymerization of styrene

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

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A broad particle-szie distribution in mini-emulsion polymerization is generally attributed to the long induction period and homogeneous nucleation in the aqueous phase. In this study, the high dissociation rate of the interfacial redox initiator system cumene hydroperoxide/ferrous ion/ethylenediaminetetraacetic acid/ sodium formaldehyde sulfoxylate (CHP-Fe2+-EDTA-SFS), which could produce hydrophobic radicals and decrease homogeneous nucleation in the aqueous phase, was used to prepare the mini-emulsion polymerization. Polystyrene particles of narrow size distribution were obtained, and their molecular weights were also very narrow (polydispersity index = 1.5-2.0). The effects of the initiator concentration, the ratio of surfactant/cosurfactant (sodium lauryl sulfate/cetyl alcohol, SLS/CA), the styrene concentration and the reaction temperature in the mini-emulsion polymerization of styrene were also investigated. When higher CHP and SFS concentrations or higher reaction temperature were used in the mini-emulsion polymerization, the polymerization rate and conversion became higher. The order of SLS : CA ratios for preparing polymer particles of high stability was 1:3 > 1:10 > 1:1 > 1:6 > 1:0.

Original languageEnglish
Pages (from-to)2509-2516
Number of pages8
Journalpolymer
Volume37
Issue number12
DOIs
Publication statusPublished - 1996 Jan 1

Fingerprint

Styrene
Emulsion polymerization
Kinetics
Ethylenediaminetetraacetic acid
Edetic Acid
Nucleation
Polystyrenes
Sodium dodecyl sulfate
Polydispersity
Formaldehyde
Surface-Active Agents
Sodium Dodecyl Sulfate
Polymers
Alcohols
Surface active agents
Sodium
Molecular weight
Polymerization
Ions
Temperature

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Wang, Cheng Chien ; Yu, Nan San ; Chen, Chuh-Yung ; Kuo, Jen Feng. / Kinetic study of the mini-emulsion polymerization of styrene. In: polymer. 1996 ; Vol. 37, No. 12. pp. 2509-2516.
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Kinetic study of the mini-emulsion polymerization of styrene. / Wang, Cheng Chien; Yu, Nan San; Chen, Chuh-Yung; Kuo, Jen Feng.

In: polymer, Vol. 37, No. 12, 01.01.1996, p. 2509-2516.

Research output: Contribution to journalArticle

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