Res. Chem. Intermed.
, Vol. 34, Nos 8–9, pp. 881–889 (2008)
Koninklijke Brill NV, Leiden, 2008.
Also available online - www.brill.nl/rci
Kinetic parameter estimation for
1,1,3,3-tetramethylguanidinum triﬂuoroacetate ionic liquid
in the reaction of glycidyl methacrylate with
, BYOUNG-SIK CHOI
, DAE-WON PARK
and JAE-WOOK LEE
Division of Chemical Engineering, Pusan National University, Busan 609-735, South Korea
Division of Chemical Engineering, Sogang University, Seoul 121-742, South Korea
Received 23 May 2007; accepted 31 October 2007
Abstract—The ionic liquid (IL) of 1,1,3,3-tetramethylguanidinum triﬂuoroacetate, which was synthe-
sized by reacting 1,1,3,3-tetramethylguanidine (TMG) and triﬂuoroacetic acid, was used as a catalyst
of the reaction between carbon dioxide and glycidyl methacrylate (GMA). The initial absorption rate
of carbon dioxide into GMA solutions containing IL was measured in a semi-batch stirred tank with
a plane gas–liquid interface at 101.3 kPa to obtain the reaction kinetics. The reaction rate constants
of the reaction between carbon dioxide and GMA were evaluated from analysis of the mass trans-
fer mechanism accompanied by the elementary reactions based on the ﬁlm theory. Solvents such as
toluene, N-methyl-2-pirrolidinone and dimethyl sulfoxide affected the reaction rate constants.
Keywords: Ionic liquid; gas absorption; carbon dioxide; glycidyl methacrylate.
Recently, the chemistry of carbon dioxide has received much attention . The
studies on oxirane–CO
reactions have focused on the reaction mechanism, the
overall reaction kinetics and the effect of the catalyst on the conversion. However,
because the diffusion may have an effect on the reaction kinetics in the mass transfer
accompanied by chemical reactions , it is necessary to study the effect that
diffusion has on the reaction kinetics of the gas–liquid heterogeneous reactions,
such as the oxirane–CO
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