| 초록 |
The preparation of gold nanoparticles incorporated in self-assembled and ordered poly(1H,1H-dihydroperfluorooctyl methacrylate)-b-polyethylene oxide (poly(FOMA-b-EO)) block copolymer thin films is explored with a change of size of the gold nanoparticles through a phase transition. Semifluorinated diblock copolymers poly(FOMA10k-b-EO12k) was prepared by atom transfer radical polymerization, and its micellar solution with a gold precursor, LiAuCl4, in chloroform was spin-coated onto substrate to produce thin hybrid films. The salts complexed with the PEO chains selectively. Three different annealing modes of LiAuCl4-loaded block copolymeric thin films were employed. After annealing, the chains was reorganized as they try to reach thermodynamic equiplibrium and formed spherical copolymeric films. The nanoparticles were forced to follow the morphological change and were transformed into a larger single particle in each PEO domain. |
