| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Electrochromic Properties of Polyimides Prepared from Methyl Substituted Triphenylamine Moiety with Different Dianhydrides |
| 초록 |
A series of solution-processable electrochromic aromatic polyimides (PIs) with triphenylamine (TPA) units in the backbone were prepared by the chemical imidazation from two diamine monomers with electron donating and electron withdrawing group and various dianhydrides. The molecular structures of the PIs were analyzed by means of fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and Differential scanning calorimetry (DSC), UV spectroscopy and Cyclic voltammograms (C-V). These polymers were highly soluble in many organic solvents and had high glass-transition temperatures. PI having electron donor groups in TPA moiety showed better reversible electrochemical oxidation and electrochromism than PI having electron withdrawing substituents. Color change from colorless neutral form to blue oxidized form at applied potentials ranging from 0.0 to 1.8 V. |
| 저자 |
곽영준, 이명준, 석웅철, 김준표, 박주현, 이승우
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| 소속 |
영남대 |
| 키워드 |
polyimide |
| E-Mail |
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