Dispersion polymerization of styrene in supercritical carbon dioxide: Importance of effective surfactants

Published

Journal Article

The dispersion polymerization of styrene in supercritical CO2 using amphiphilic diblock copolymers to impart steric stabilization was investigated. Lipophilic, CO2-insoluble materials can be effectively emulsified in carbon dioxide using amphiphilic diblock copolymer surfactants. The resulting high yield (>90%) of polystyrene is obtained in the form of a stable polymer colloid comprised of submicronsized particles. The particle diameter and distribution of sizes were shown to be dependent on the nature of the stabilizing block copolymer.

Full Text

Duke Authors

Cited Authors

  • Canelas, DA; Betts, DE; DeSimone, JM

Published Date

  • April 8, 1996

Published In

Volume / Issue

  • 29 / 8

Start / End Page

  • 2818 - 2821

International Standard Serial Number (ISSN)

  • 0024-9297

Digital Object Identifier (DOI)

  • 10.1021/ma951642n

Citation Source

  • Scopus