A soluble copolymer-supported catalyst containing pendant triethylammonium chloride was synthesized by the radical copolymerization of p-chloromethylated styrene with styrene followed by the addition reaction of the resulting copolymer with triethylamine. Initial absorption rate of carbon dioxide into glycidyl methacrylate (GMA) solutions containing the catalyst was measured in a semi-batch stirred tank with a plane gas - liquid interface at 101.3 kPa. The reaction rate constants of the reaction between carbon dioxide and GMA were evaluated from analysis of the mass transfer mechanism accompanied by the elementary reactions based on the film theory. Solvents such as toluene, N-methyl-2-pirrolidinone, and dimethyl sulfoxide influenced on the reaction rate constants. Furthermore, this catalyst was compared to the monomeric tetraethylammonium chloride under the same reaction conditions. (c) 2007 Elsevier B.V.. All rights reserved.