【摘要】 超声作用于低熔点金属镓,使其超细化为纳米级的镓粒子,并采用无引发剂的乳液聚合方法制备出GA/聚甲基丙烯酸甲酯(PMMA)纳米复合粒子,并分析了其微观结构。结果表明纳米镓的形态和结构因有无表面改性剂而不同;乳液聚合得到的纳米镓复合粒子是核壳结构型,粒子大小为50~80 NM,内核金属镓粒径为30~50 NM,与聚合物存在一定的化学作用。更多还原

【Abstract】 The preparation of nano-Ga particles,the surface-modification of gallium nanoparticles by ultrasonic were studied.The nanocomposites of Ga/PMMA with core shell structure were prepared through emulsion polymerization without initiator and then characterized.The results indicated that the size of Ga/PMMA composite nanoparticles was about 50～80 nm with 30～50 nm Ga particles as the inner cores.The testing results showed that there were chemical actions between Ga and oxygen of carbonyl within PMMA.更多还原