Some Reflections On Styrene Suspension Polymerization Experiment Teaching

[摘要] The results of suspension polymerization of styrene were studied by changing the dosage of initiator, stirring speed, size of stirring paddle, content of dispersant and reaction temperature. The results showed that when using 500 ml four flasks, styrene 40 ml and polyvinyl alcohol solution (3 g polyvinyl alcohol dissolved in 1000 ml deionized water) 200 ml, initiator 0.5 g, stirring speed 300-450 r/min, temperature range 86-95°C, using the stepped heating method and using the impeller with a spreading blade diameter of 43 mm can ensure the success of the experiment, and the yield is relatively high.

[发布机构] College of Materials Science and Engineering, Key Laboratory of Automotive Materials, Ministry of Education, Jilin University, Changchun; 130025, China^1

[效力级别] 机械制造

[关键词] Experiment teachings;Heating method;Polyvinyl alcohol solution;Reaction temperature;Stirring speed;Styrene suspension polymerization;Suspension polymerization of styrene;Temperature range