Dispersion Polymerization of Styrene in Supercritical Carbon Dioxide: Importance of Effective Surfactants
Macromolecules1996Vol. 29(8), pp. 2818–2821
Citations Over TimeTop 1% of 1996 papers
Abstract
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 submicron-sized particles. The particle diameter and distribution of sizes were shown to be dependent on the nature of the stabilizing block copolymer.
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