Some Reflections On Styrene Suspension Polymerization Experiment Teaching

2018 5th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造;土木建筑工程

Guan, Dongbo^1 ; Li, Jinliang^1 ; Sun, Guoen^1 ; Zhai, Xiaojie^1

College of Materials Science and Engineering, Key Laboratory of Automotive Materials, Ministry of Education, Jilin University, Changchun

130025, China^1

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

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/473/1/012026/pdf
DOI  :  10.1088/1757-899X/473/1/012026

来源: IOP

【 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.