BULK POLYMERIZATION OF METHYL METHACRYLATE IN A KNEADER REACTOR

摘要

The bulk free radical polymerization of methyl methacrylate (MMA) or the bulk free radical copolymerization of MMA based monomer recipes face a gel effect (Trommsdorff s effect) and exothermicity. The kneader reactor offers a perfect combination of surface renewal and evaporative cooling to control temperature at high conversion (85 to 95%). This type of reactor can be tested batch-wise to optimize the recipe, such as concentrations of initiator and of chain transfer agent. A simulation program was correlated to experimental batch data to determine the optimum concentrations of initiator and of chain transfer agent to target a given molecular weight.