The preparation of metal-polymer composite materials using ultrasound radiation: Part II. Differences in physical properties of cobalt-polymer and iron-polymer composites

Composite materials containing amorphous iron embedded in poly(methylacryla te) or poly(methylmethacrylate) and amorphous cobalt embedded in poly(methy lacrylate) were formed using a sonochemical method. The physical and therma l properties of the composite materials were probed. A significant differen ce in the solubility of the iron-poly(methylacrylate) and cobalt-poly(methy lacrylate) in various solvents was observed, This difference is accounted f or by the stronger interaction existing between the cobalt and the surround ing polymer. For iron-poly(methylacrylate) this interaction is weakened due to the formation of an iron complex.