在不加任何引发剂和金属还原剂的条件下,超声辐射双原位引发乳液聚合制备纳米银镓合金/聚甲基丙烯酸甲酯(Ag-Ga/PMMA)复合粒子.利用HREM、EDS、XRD等对复合粒子进行了分析,表明所制得的乳胶粒子具有典型的核壳结构,粒径为80~200 nm,分布均匀,单分散性好,基本没有出现团聚.乳胶粒子中成壳部分的聚合物产生了一层层有序组装的现象.XRD证明,有纳米合金Ag0.72Ga0.28存在;此外还出现了2个新的衍射峰,推断可能是新的银镓合金物质.
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