초록 |
The use of block copolymer micelle as a tool of nanolithography has been intensively studied over the last decade since it can provide a simple, easy accessible route to generate nanostructured interfaces. Block copolymers are well-known to self assemble into spherical micelles in a selective solvent. Morphological diversity of block copolymer micelles can be increased by involving additional factors, such as adding metallic precursor. Selective loading of the precursor through ionic or coordination interaction can lead to the morphological transition. In this work, the structure of thin films generated polystyrene-b-poly (acrylic acid) (PS-b-PAA) micelles was examined. A small amount of HAuCl4 and AgNO3 as metallic precursor were added to the micellar solution, and their effects were examined as a function of precursor amount added. At relatively high concentration of gold precursor, morphological transition to worm-like structure was observed. |