Abstract
Abstract Inspired by the Leidenfrost phenomenon, a direct-cooled, general-purpose, low-temperature reactor has been developed and its applicability for polymerization was demonstrated. The Leidenfrost reactor is efficiently cooled by introducing relatively inexpensive liquid N2, (LN2), directly into the bulk of polymerization charges; the rapid evaporation of the coolant chills the system. The gaseous N2, generated provides an inert gas blanket that protects moisture- and/or air sensitive charges. The installation of expensive cooling jackets or coils is superfluous and stirring is optional. The virtually complete recovery of cooling energy is possible. In the Leidenfrost reactor, the LN2, heat sink is virtually in contact with the heat source so that the path of heat transfer is practically nil.
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