1998•Acta Scientiarum Naturalium Universitatis SunyatseniRequires access

The Solubility of Styrene from Polystyrene in Supercritical CO 2

蒋春跃, 潘勤敏, 潘祖仁

Abstract

The solubility of styrene from polystyrene in supercritical carbon dioxide is measuredat 323 K,333 K,and 343 K in the pressure range from 12 to 28 MPa.Based on the associationconcept and the theory of dense gas sorption in polymers,a displacement and association mechanismon supercritical fluid extraction of the monomer from the polymer is proposed.And,a novel math-ematical model for correlating the solubility data obtained from the experiments is also proposed inthe paper.

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Available abstract

Key concepts: Supercritical fluid, Polystyrene, Solubility, Styrene, Supercritical carbon dioxide, Polymer, Supercritical fluid extraction, Monomer