采用原位法,以二甲基甲酰胺(DMF)为还原剂和溶剂,制备纳米Ag/PMMA复合薄膜.采用XRD、TEM、FT-IR、UV-Vis表征了纳米Ag/PMMA复合薄膜物相,纳米银的颗粒形貌,分析了纳米银与基体PMMA之间的相互作用机理,并对溶胶和薄膜的光学特性进行表征.结果表明,反应生成的为面心立方银单质,并且随着反应时间的增加,纳米银颗粒粒径增大,并且颗粒由球形颗粒逐渐生长为三角板型颗粒;纳米银颗粒在基体PMMA中分布均匀,纳米银颗粒与基体PMMA之间的作用为弱化学作用,这种作用导致纳米银颗粒的均匀、稳定分布;薄膜的光学性能测试表明了,纳米Ag/PMMA复合薄膜由于纳米银颗粒的表面等立体共振在紫外一可见光区有明显的吸收带.
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