中文摘要：

采用丙烯酸（AA）和盐酸（HCl）处理纳米镍粉，通过乳液聚合方法，在纳米镍粉存在下甲基丙烯酸甲酯（MMA）原位聚合，形成纳米镍／聚甲基丙烯酸甲酯（nanoNi／PMMA）复合粒子。IR分析表明，AA通过化学键与纳米镍粒子结合，颗粒表面引入了C=C基团；采用XRD，IR，TGA，DSC，TEM等分析手段分别对含有盐酸处理的纳米镍粉的复合粒子（HCl-nanoNi／PMMA）及含有AA处理的纳米镍粉的复合粒子（AA—nanoNi／PMMA）进行了分析表征。结果表明，MMA在AA—nanoNi表面接技聚合，纳米镍粉表面的双键参与了聚合反应，形成了具有核壳结构的复合粒子。

英文摘要：

Ni nanoparticles were disposed by hydrochloric acid and acrylic acid. Nano-Ni/PMMA composite nanoparticles were prepared through emulsion polymerization in the presence of nanoNi. IR results showed that AA was combined with nanoNi through chemical bond, and C=C was introduced to the surface of nanoNi. The two kinds composite particles （HCl-nanoNi/PMMA, AA-nanoNi/PMMA） were characterized by means of XRD, IR, TGA, DSC and TEM. It shows that MMA graft polymerizes on the surface of AA-nanoNi, and double bonds participate in the polymerization, the composite particles have core-shell structure.