Ag-polymer composite microspheres with patterned surface structures

作者：Xia Huiyun; Zhang Ying; Sun Song; Fang Yu^*

来源：Colloid and Polymer Science, 2007, 285(15): 1655-1663.

DOI：10.1007/s00396-007-1737-2

• silver
• silver chromate
• silver phosphate
• composite microspheres
• chemical conversion

Novel silver-poly(acrylamide-co-methacrylic acid) [Ag-P(AM-co-MAA)] composite microspheres, in tens of micrometer size range, with patterned surface and core/shell structures were prepared by chemical reduction of Ag2CrO4-P(AM-co-MAA) composite microspheres in ethanol. Characterization with various techniques revealed that the chemical composition of the "shell" is dominated by Ag, but the "core" is dominated by the template, P(AM-co-MAA). It was also demonstrated that the surface morphology of the Ag-polymer composite microspheres is similar to that of their precursors and can be controlled to a certain extent by varying the composition of template copolymer, approaches, and amount of Ag2CrO4 deposited. This morphology transfer technique is also applicable for other silver salts-polymer composite microspheres. The same silver-polymer composite microspheres with very different morphology have also been prepared by utilizing this technique, but the different precursor microspheres, Ag3PO4-P(AM- co- MAA), were used.

• 出版日期2007-12
• 单位陕西师范大学