| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Characteristics of sulfonated styrenic pentablock copolymer/ionic liquid membranes and their IPMC actuators |
| 초록 |
Herein, sulfonated styrenic pentablock (SSPB) copolymer/ionic liquid (IL) membranes were formed by incorporating four imidazolium ILs with different cation sizes, i.e. 1-ethyl-3-methylimidazolium, 1-butyl-3-methylimidazolium, 1-hexyl-3-methylimidazolium, and 1-octyl-3-methylimidazolium cations were combined with bis(trifluoromethylsulfonyl)imide anion. The SSPB copolymer was poly((t-butyl-styrene)-b-(ethylene-r-propylene)-b-(styrene-r-styrene sulfonate)-b-(ethylene-r-propylene)-b-(t-butyl-styrene)). Compared with the Nafion counterpart, the resulting nanostructured SSPB/IL membranes showed higher ionic conductivities, especially with large cations of IL. This may be attributed to the big ion-conduction channels (ca. 20 nm) in the polyelectrolyte. The SSPB/IL membranes also had mechanical strengths much higher than those of the Nafion/IL membranes. IPMCs constructed with the SSPB/IL membranes generated a soft bending motion with stable actuation in air. |
| 저자 |
이장우, 유승건, 이진홍, 김민호, 홍순만, 구종민
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| 소속 |
KIST |
| 키워드 |
Sulfonated styrenic pentablock copolymer; Ionic liquid; Ionic polymer–metal composites (IPMCs); Actuator
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| E-Mail |
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