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表征了超声辐照引发 MMA微乳液聚合产物的结构 ,透射电镜观察结果表明 ,超声辐照引发 MMA微乳液聚合得到的 PMMA乳胶粒平均粒径为 36 .5 nm,粒径分布窄 ;粘度法测试表明得到的 PMMA分子量约为 5百万 ;红外光谱法和核磁共振氢谱法测试结果表明 ,超声辐照引发微乳液聚合得到的 PMMA以间同立构为主
The structure of MMA microemulsion polymerization product was characterized by transmission electron microscopy. The results showed that the average particle diameter of PMMA latex particles polymerized by ultrasonic irradiation was 36.5 nm and the particle size distribution was narrow. The viscosity test The results showed that the molecular weight of PMMA was about 5 million. The results of FT-IR and 1H NMR showed that the syndiotacticity of PMMA obtained by ultrasonic irradiation induced microemulsion polymerization