| 초록 |
Due to the different affinity of poly(4-vinylphenol) and poly(vinyl alcohol) with solvents, the diblock copolymer consisting of these two polymers can be self-assembled into a core-shell type particle. We synthesized poly(4-vinylphenol)-b-poly(vinyl alcohol) diblock copolymer and studied the core-shell structure in mixed solvent systems. The poly(4-vinylphenol) and the poly(vinyl alcohol) blocks were obtained by hydrolyzing their precursor, poly(4-acetoxystyrene) and poly(vinyl acetate), respectively. In water/DMSO mixed solvent condition, we confirmed the core-shell structure in which poly(4-vinylphenol) block acts as a core and poly(vinyl alcohol) block acts as a shell. In contrast, the inverted core-shell structure was formed in the THF/DMSO mixed solvent system. From the change of fluorescent emission shape and metal-polymer interaction in different solvents, the location of poly(4-vinylphenol) block can be identified. |
