无乳化剂条件下超声波引发苯乙烯乳液聚合

A Study on Emulsion Polymerization of Styrene in Water Induced by Ultrasonic

利用超声波二级乳化效应 ,实现了苯乙烯在水相中无乳化剂条件下的乳液聚合 ,并且初步探讨了超声时间对粘均分子量、聚合转化率的影响、反应体系的配比与聚合产物产率的关系、以及超声功率的变化对粘均分子量的影响 .

Emulsion polymerization of styrene in water induced by ultrasonic was studied. It was found that the secondary effect of ultrasonic could emulsify styrene in water without an emulsifier. The polystyrene (PS) yield and molecular weight strongly depend on power, time of ultrasonic and ratios of water to styrene.