| 초록 |
In recent years, it has been demonstrated that noncovalent bondings such as ionic interaction can be used advantageously in molecular engineering to render nanoscale structuring by self-organization. Using such physical bondings in place of covalent bondings, thermoreversible block copolymer-like clusters can be constructed. In the present work, the microstuctures of reversibly associating ABA triblock-like binary blend system that consists of two different species of functionalized homopolymers were investigated. For this purpose, polyisoprene having amine group at one end (ω-functionalized PI) and telechelic polystyrene end-capped by sulfonic acid group (α,ω-difunctionalized PS) were prepared by anionic polymerization, and the morphological structures of their blends are investigated by SAXS and TEM. From the results obtained by SAXS and TEM, we find that these functionalized polymer blends exhibit much more variety in morphologies than analogous covalent bonded diblock or triblock copolymer melts. |
