Determination of physical performance of styrene-methyl methacrylate copolymer

The molecular weight,density,distribution of bead degree and residual quantity of monomer of the copolymer beads of styrene(ST)-methyl methacrylate(MMA) were determinated by small and middle size experiments.It is shown that physical performance of copolymer is deeply influenced by reaction temperature,providing dependable experiment data and theoretical foundation for further industrialization.