sinc 1980 modeling of polymerization reactors has become more comprehensive. to develop 3 predictive model. account must be take of the chemistry and physics of all the microscopic processes that occur in the polymerization process. the polymer reactors model is now becomeing accepted as a valuable tool whose use contributes significantly to all aspects of process technology for polymer manufacture. this includes process design, optimization state estimation and control. polymer with a unique and desirable combination of properties can often be obtained through process design.