| 초록 |
For the fabrication of remote-controllable actuators, we newly designed and successfully synthesized dendronized polynorbornene (denpol) using azobenzene-based macromonomers. We obtained the denpol (P-3AZ) with narrow polydispersity (PDI) through ring opening metathesis polymerization (ROMP). To analyze the molecular packing structures, the 2D wide angle X-ray diffraction (2D WAXD) was performed and uniaxially oriented P-3AZ film was found to have three different layered structures at various temperatures. When the P-3AZ film was irradiated upon UV light, the film resulted in trans-to-cis isomerization.. Irradiation of UV light to the P-3AZ film resulted in bending and the light-emitting diode (LED) colors changed by closing the circuit. This work was supported by the Basic Research Laboratory Program (2020R1A4A1018259), Mid-Career Researcher Program (2016R1A2B2011041), Bk21 FOUR program. |
