Molecular Weight Evolution in the Catalytic Chain Transfer Polymerization of CO2-Expanded Methyl Methacrylate

• Published in: Macromolecules Vol. 41; no. 14; pp. 5141 - 5147
• Main Authors: Zwolak, Grzegorz, Lucien, Frank P
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 22.07.2008
• Subjects: Applied sciences; Exact sciences and technology; Organic polymers; Physicochemistry of polymers; Polymerization; Preparation, kinetics, thermodynamics, mechanism and catalysts; Catalytic reaction; Molecular weight distribution; Carbon dioxide; Methyl methacrylate polymer; Polymerization under pressure; Volume expansion; Cobalt complex; Experimental study; Modeling; Time variation; Chemical reaction kinetics; Oxygen nitrogen boron heterocycle; Kinetic model; Free radical polymerization; Chain transfer

Molecular weight evolution in catalytic chain transfer polymerization of methyl methacrylate expanded with dense CO2 is reported. Experimental molecular weight and polydispersity index data are presented at 50 °C in the range of conversion from 1 to 25%, and at pressures of 5 and 6 MPa. A cobaloxime...