Fig. 3
From: Dynamic ionic crosslinks enable high strength and ultrastretchability in a single elastomer
Dynamic mechanical analysis result of PI–xNa. a Temperature sweep of storage modulus (E′) and loss modulus (E″) for PI and PI–90Na measured at 1 Hz. Relaxations assigned to glass transition of ionic aggregates and ion-hopping are indicated with open and solid arrows, respectively. PI (Mn = 488000) is measured for comparison. b Temperature sweep of E′ and E″ for PI–43Na, PI–58Na, and PI–90Na measured at 1 Hz. Relaxations assigned to glass transition of ionic aggregates and ion-hopping are indicated with open and solid arrows, respectively. Room temperature (28 °C) is indicated with a vertical red broken line
