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Frequency sweeps of P(8)20-AA ionic gels formed at polymer concentrations of 10 (hexagons), 15 (squares) and 20 wt% (pentagons) at a calcium concentration of 100 mM: (a) Storage (G′) and loss (G″) moduli are represented with solid and open symbols, respectively; (b) Damping factor (tan δ). All measurements were performed at 20°C and 5% strain.
