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用反相悬浮聚合方法 ,在超声分散的条件下 ,以氧化还原体系为引发剂、Span体系为乳化剂制备丙烯酸铕以及丙烯酸铕 (镧 )悬浮液。对体系的稳定性及稀土盐的荧光性能等进行了研究 ,讨论了镧离子和铕离子之间的荧光增强作用 ,并利用扫描电镜观察了粒子的形态和粒径
The reversed-phase suspension polymerization was used to prepare europium acrylate and europium (lanthanum) acrylate suspension under the conditions of ultrasonic dispersion, using redox system as initiator and Span system as emulsifier. The stability of the system and the fluorescence properties of rare earth salts were studied. The fluorescence enhancement between lanthanum ions and europium ions was discussed. The morphology and particle size of the particles were observed by scanning electron microscopy