Characterization of acrylonitrile polymerization by dilatometry and modeling

Solution polymerization of acrylonitrile was investigated in N,N'-dimethylf ormamide with various azo- and peroxo-initiators. Investigations were carri ed out in a concentration range of initiatior from 0.0016 mol/l up to 0.016 0 mol/l, constant acrylonitrile concentration of 3.8 mol/l and temperatures from 40 degreesC up to 70 degreesC. The computer combined dilatometric equ ipment for long time and high conversion investigations was used for estima tion of the conversion-time-reaction. By means of obtained data a mathemati cal model was created. The model describes sufficiently precise acrylonitri le polymerization kinetics in N,N'-dimethylformamide with various initiator s in the used range of concentrations and temperatures.