| 초록 |
Due to its high electrical conductivity, stability, and electroactive characteristics, polyaniline has attracted considerable attention for potential applications in electrochromic devices, sensors and photodiodes.[24] And polyimides are very interesting group of incredibly strong and astoundingly heat and chemical resistant polymers. Their strength and heat and chemical resistance are so great that these materials often replace glass and metal.[25] These polymers had high glass transition temperatures and degradation temperature. Polyimides having electron donor groups in aniline moiety showed better reversible electrochemical oxidation and electrochromism than polyimides having electron withdrawing substituents. The experiment results observed that the color of polyimides was changed from yellow to green and from green to violet at applied potentials ranging from 0.0V to 2.4V. |
