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. Author manuscript; available in PMC: 2015 Jan 8.
Published in final edited form as: Adv Mater. 2013 Nov 4;26(1):85–124. doi: 10.1002/adma.201303233

Figure 2.

Figure 2

Examples of composite elastomers. A) N-isopropylacrylamide/clay nanocomposite hydrogel; i) with high level of elongation and ii) torsion. Reproduced with permission.[95] Copyright 2002, John Wiley & Sons, Inc. B) Volume change of a superabsorbent polyrotaxane gel swelled to 45 times the initial weight; before volume change, in dried state, and in swollen state (up to 400% of its dry weight). Reproduced with permission.[97] Copyright 2001, John Wiley & Sons, Inc. C) Crack resistance of a PDGI/PAAm gel; (i) hydrogel with an initial sharp crack along the longitudinal direction, (ii) the hydrogel was stretched perpendicular to the crack direction up to a strain of 3. Reproduced with permission.[99] Copyright 2011, American Chemical Society. D) Highly stretchable alginate/acrylamide gel; i) the gel was glued to two rigid clamps and stretched up to 21 times its initial length, ii) a notch was cut into the gel before stretching to 17 times its initial length. Reproduced with permission.[100] Copyright 2012, Nature Publishing Group.