3 Lehmann W, Skupin H, Tolksdorf C, et al. Giant lateral electrostriction in ferroelectric liquid-crystalline elastomers. Nature, 2001, 410:447-450？？
[3]
4 Liu S, Liu Y, Cebeci H, et al. High electromechanical response of ionic polymer actuators with controlled-morphology aligned carbonnanotube/Nafion Nanocomposite electrodes. Adv Funct Mater, 2010, 20: 3266-3271？？
[4]
5 Bar-Cohen Y. Electroactive Polymer (EAP) Actuators as Artificial Muscles: Reality, Potential, and Challenges. Washington: SPIE Press, 2001
[5]
6 Kim K J, Shahinpoor M. Ionic polymer-metal composites: II. Manufacturing techniques. Smart Mater Struct, 2003, 12: 65-79？？
[6]
7 Shahinpoor M, Kim K J. The effect of surface electrode resistance on the performance of ionic polymer-metal composite (IPMC) artificialmuscles. Smart Mater Struc, 2000, 9: 543-551？？
[7]
8 Lee S G, Park H C, Pandita S D, et al. Performance improvement of IPMC (ionic polymer metal composites) for a flapping actuator. Int JCon Aut Sys, 2006, 4: 748-755
[8]
9 Lee J W, Kim J H, Chun Y S, et al. The performance of Nafion-based IPMC actuators containing polypyrrole/alumina composite fillers.Macromol Res, 2009, 17: 1032-1038
[9]
10 Shahinpoor M, Kim K J. Ionic polymer-metal composites: IV. Industrial and medical appilications. Smart Mater Struc, 2005, 14: 197-214？？
[10]
11 Park I S, Kim S M, Pugal D, et al. Visualization of the cation migration in ionic polymer-metal composite under an electric field. ApplPhys Lett, 2010, 96: 0433011-0433013
[11]
12 Shoji E, Hirayama D. The effects of the potential and polarization time on the performance of ionic polymer metal composite actuators: Acontrol of forward and reverse displacements. Polym Adv Technol, 2007, 18: 346-352？？
[12]
13 Tiwari R, Kim K J. Disc-shaped ionic polymer metal composites for use in mechano-electrical applications. Smart Mater Struct, 2010, 19:0650161-0650167
[13]
14 Yu M, Shen H, Dai Z D. Manufacture and performance of ionic polymer-metal composites. J Bionic Eng, 2007, 4: 143-149？？
[14]
16 Yeom S W, Oh I K. A biomimetic jellyfish robot based on ionic polymer metal composite actuators. Smart Mater Struct, 2009,18: 085022？？
[15]
17 Kim K J, Shahinpoor M. A novel method manufacturing three-dimensional ionic polymer-metal composites (IPMC) biomimetic sensors,actuators and artificial muscles. Polymer, 2002, 43: 797-802？？
[16]
18 Onishi K, Sewa S, Asaka K, et al. Morphology of electrodes and bending response of the polymer electrolyte actuator. Electrochim Acta,2000, 46: 737-743
[17]
22 Millet P. Preparation of solid polymer electrolyte composites: investigation of the ion-exchange process. J Appl Elec, 1995, 25: 227-232
[18]
23 Millet P. Preparation of solid polymer electrolyte composites: investigation of the precipitation process. J Appl Elec, 1995, 25: 233-239
[19]
24 Lee J H, Lee J H, Nam J D, et al. Water uptake and migration effects of electroactive ion-exchange polymer metal composite (IPMC) actuator.Sens Actuators A, 2005, 118: 98-106？？
[20]
25 Lee J W, Yoo Y T. Anion effects in imidazolium ionic liquids on the performance of IPMCs. Sens Actuators B, 2009, 137: 539-546？？
[21]
26 Bennett M D, Leo D J. Ionic liquids as stable solvents for ionic polymer transducers. Sens Actuators A, 2004, 115: 79-90？？
[22]
27 Nguyen V K, Lee J W, Yoo Y T. Characteristics and performance of ionic polymer-metal composite actuators based on Nafion/layeredsilicate and Nafion/silica nanocomposites. Sens Actuaotrs B, 2007, 120: 529-537？？
[23]
2 Aliev A E, Oh J, Kozlov M E, et al. Giant-stroke, superelastic carbon nanotube aerogel muscles. Science, 2009, 323: 1575-1578？？
[24]
15 Zhang W, Guo S X, Asaka K. A new type of hybrid fish-like microrobot. Int J Autom Comp, 2006, 4: 358-365
[25]
19 Lee S J, Han M J, Kim S J, et al. A new fabrication method for IPMC actuators and application to artificial fingers. Smart Mater Struct,2006, 15: 1217-1224？？
[26]
20 Lee D Y, Park I S, Lee M H, et al. Ionic polymer-metal composite bending actuator loaded with multi-walled carbon nanotubes. SensActuators A, 2007, 133: 117-127
[27]
21 Guo D J, Ding H T, Wei H J, et al. Hybrids perfluorosulfonic acid ionomer and silicon oxide membrane for application in ion-exchangepolymer-metal composite actuators. Sci China Ser E: Technol Sci, 2009, 52: 3061-3070？？
[28]
28 Kim S J, Lee I T, Kim Y H. Performance enhancement of IPMC actuator by plasma surface treatment. Smart Mater Struct, 2007, 16:N6-N11？？
