초록 |
Conjugated polymer has high conductivity that comes from low band gap and advantages of normal polymer such as light-weight and high machinability while conjugated polymer is easily oxidized and losing its property by oxygen in air. Therefore, photostablity enhancement of conjugated polymer can lead to increase of lifetime of device that conjugated polymer nanoparticles is applied to. In this study, we prepared conjugated polymer nanoparticles with phospholipid from phase separated film. Phospholipid is biocompatible surfactant and good for applying in vivo situation. To prepare nanoparticles well, relationship between conjugated polymer side chain and lipid alkyl tail length to prepare nanoparticles is tested by using various conjugated polymers and phospholipids. We confirmed photostability of conjugated polymer nanoparticles and raw polymers by solar simulator and UV-vis spectroscopy. The detailed structure of each conjugated polymer nanoparticles and relations between the structure and photostability are measured by GIXD. |