STUDY OF THE LIQUID-VAPOR-EQUILIBRIUM IN SYSTEMS CONTAINING THE PRODUCTS OF SYNTHESIS OF STYRENE AND ACRYLONITRILE-BUTADIENE-STYRENE POLYMERS .2. EXPERIMENTAL-DATA FOR MONOMER-ALPHA-OLEFIN-POLYMER SYSTEMS AT 353.15-373.15 K

The liquid-vapor equilibrium in systems containing monomers (styrene a nd acrylonitrile), solvents (1-hexene and 4-methyl-1-pentene), and pol ymers (polybutadiene, polystyrene, and acrylonitrile-butadiene-styrene ) was studied experimentally. The study was carried out by the static method using the gas chromatographic analysis of equilibrium vapor on a Multifract F-45 gas chromatograph in the temperature range 353.15-37 3.15 K. The fugacities, pressure, and composition of the vapor were ca lculated from experimental data on the activities of the low-molecular -weight components with allowance made for the nonideality of the vapo r phase using the second virial coefficients evaluated by the Hayden-O 'Connell method.