| 학회 |
한국고분자학회 |
| 학술대회 |
2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 |
30권 1호, p.219 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Ionic Liquid in Silver Polymer Electrolytes and its Effect on Reduction of Silver Ion |
| 초록 |
We reported on successful use of ionic liquid in silver polymer electrolytes in controlling ionic interactions and its application to facilitated olefin transport. Ionic liquids composed of 1-butyl-3-methyl imidazolium cation (BMIM+) and nitrate (NO3-) anions or (BF4-) anions were introduced to silver polymer electrolytes consisting of silver ions dissolved in poly(2-ethyl-2-oxazoline) (POZ). We were successful in controlling ionic interactions and structures of polymer electrolytes by introducing ionic liquid, producing enhancement of silver ion activity. These results are believed to be obtained by the diminished interaction of silver cations with counteranions due to the electrostatic interaction of the counteranions with BMIM+ of ionic liquid and by the elevation of polymer chain flexibility. However ionic liquid composed of 1-butyl-3-methyl imidazolium cation (BMIM+) and (BF4-) anions was introduced to silver polymer electrolytes consisting of silver ions dissolved in POZ, the membrane performance decreased with time. Furthermore, BMIM+BF4-/AgNO3 complex membrane also showed the deterioration of performance in long-term operation while BMIM+NO3-/AgNO3 complex membrane showed the long-term stability. We found that the counteranions of both silver salt and ionic liquid play an important role in reducing silver ion. |
| 저자 |
강상욱1, 김종학2, 원종옥3, 차국헌4, 강용수2
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| 소속 |
1서울대 응용화학부 / KIST 촉진수송분리막 연구단, 2KIST 촉진수송분리막 연구단, 3세종대 응용화학, 4서울대 응용화학부 |
| 키워드 |
Ionic liquid; silver ion; reduction; facilitated transport; membrane
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| E-Mail |
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