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Figure 3

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(A) Linear swelling λf versus Bis content wx for different AAm contents wm (see legend). Open symbols represent compositions where surface-attached gels formed creases. Dotted and dashed lines at λf = 1.5 and wx= 0.028 wt %, respectively, delineate creased from stable gels. (B) Shear moduli G′ of pAAm gels. (Open symbols) Compositions where surface-attached gels formed creases. (Solid line) Predicted modulus if all cross-links were elastically active. Estimated uncertainties correspond approximately to marker sizes in both plots.

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