考察了引发剂用量、悬浮剂用量、搅拌速度与反应温度对苯乙烯悬浮聚合反应的影响.结果表明,在苯乙烯用量为16 mL、去离子水用量为130 mL、引发剂过氧化二苯甲酰(BPO)用量为0.3g、悬浮剂0.3％的聚乙烯醇溶液用量为7～8 mL、搅拌速度为300 r·min-1、反应温度为85～90℃的最佳悬浮聚合条件下,可得到颗粒尺寸均匀适中、透明度良好的聚苯乙烯产品,产率高达98.60％左右.%The effects of initiator dosage,suspension agent dosage,stirring speed and reaction temperature on styrene suspension polymerization were investigated. The optimum conditions were obtained as follows :Sty-rene amount 16 mL,deionized water amount 130 mL,initiator(benzoyl peroxide)dosage 0. 3 g,suspension agent (0.3% polyvinyl alcohol solution)dosage 7~8 mL, stirring speed 300 r·min-1, reaction temperature 85~ 90℃. Under above conditions,the polystyrene with appropriate particle size,good transparency and high yield of about 98. 60% could be obtained.
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