SUPERCRITICAL CARBON-DIOXIDE AS SOLVENT FOR THE COPOLYMERIZATION OF CARBON-DIOXIDE AND PROPYLENE-OXIDE USING A HETEROGENEOUS ZINC CARBOXYLATE CATALYST
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abstract
Supercritical carbon dioxide was found to be a suitable substitute for halogenated organic solvents in its copolymerization with propylene oxide. The system was studied utilizing a heterogenous catalyst, zinc glutarate. The polymers were analyzed for selectivity in polycarbonate linkages by 1H NMR spectroscopy and for molecular weight by gel permeation chromatography. 1995.
