Temperature oscillation calorimetry in laboratory scale stirred tank r
eactors has been applied to the free radical polymerization of acrylic
monomers in solution. It has been shown that this method can be used
to determine on-line during the reaction the heat transfer value of th
e reactor and simultaneously the rate of reaction. The information abo
ut the heat transfer value is contained in small, forced temperature o
scillations. The experimental setup of the calorimeter used is simple
and consists only of commercially available components. This new metho
d can also be incorporated into existing laboratory scale stirred tank
reactors.