| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 봄 (04/07 ~ 04/08, 대전컨벤션센터) |
| 권호 |
36권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Nafion/Sulfonated Poly(Ether Ether Ketone)/Nafion Tri-layered Composite Membrane for Ionic Polymer-Metal Composite Actuators |
| 초록 |
Various ionomers to replace commercial Nafion employed in ionic polymer-metal composite (IPMC) actuators have been reported. However, almost all the alternatives with higher ion-exchange capacity compared to Nafion have suffered from unacceptably low dimension stability of free-standing beam and consequently high electrical resistance of IPMC due to mechanical damages on surface electrode occurred during water-swelling. Herein, tri-layered composite membrane consisting thin outer layers of recast Nafion (20 micron) and a thick inner layer of SPEEK (800 micron) was prepared by chemical crosslinking between the sulfonic acid groups of different membranes. A series of SPEEK with degree of sulfonation ranging from 60 to 100 % was selected. The as-prepared actuators showed effectively enhanced performance compared to single-layer counterpart, which resulted from the enhanced conductivity and mechanical stability of IPMC. The detailed discussion will be presented in meeting. |
| 저자 |
이장열, 송대석, 윤벼리, 조재영
|
| 소속 |
서울대 |
| 키워드 |
actuators; crosslinking; electro-active polymers; Nafion; SPEEK
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| E-Mail |
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