초록 |
We have synthesized tri-block copolymers having self-complementary hydrogen-bonding units using RAFT technique. Spin-coated films of the copolymers showed the morphology change into spherical shape when it annealed in toluene vapor. Also the block copolymers self-assembled to give polymer nanoparticles in chlorinated or aromatic solvents such as chloroform and toluene. Using the chloroform solution, thin films with hexagonally ordered porous arrays were prepared through breath figure method. Characterization of the block copolymers with optical microscope, atomic force microscope, and scanning electron microscope will be presented. |