| 초록 |
Block copolymers have been increasingly investigated due to their abundant morphology and versatile applications. Especially rigid rod block containing copolymers have been of more interest recently because of their unique self-assembly behaviors which are quite different from conventional coil-coil type block copolymers. In this presentation, we are going to report synthesis of novel photoresponsive rod-coil block copolymers containing poly(spiropyran) rod blocks. Spiropyran(SP) is a well known organic dye exhibiting significant changes in optical properties as well as molecular conformations upon irradiation of light. We synthesized rigid photochromic polymer-coil polymer using Suzuki-coupling and RAFT polymerization. Photoresponsive morphology changes and optical properties are characterized using SEM, TEM, PL and UV. |
