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研完硅溶胶和铝溶胶分别存在下甲基丙烯酸甲脂(MMA)的无乳化剂乳液聚合。结果表明,当溶胶粒子的表面电荷与生成的聚合物末端电荷相反时,胶囊化效果明显。采用透射电镜(TEM)技术,电泳实验对此进行表征。同时还研究了胶囊化对体系稳定性的影响。
In the presence of silica sol and alumina sol, emulsifier-free emulsion polymerization of methylmethacrylate (MMA) was performed. The results show that the encapsulation effect is obvious when the surface charge of the sol particles is opposite to the charge of the polymer produced. Transmission electron microscopy (TEM) technology was used to characterize this effect. The effect of encapsulation on the stability of the system was also studied.