All-Polymer Dynamical Ionogel with Benzyl-Mediated Ultra-Strong Adhesion for Flexible Sensor Application

Wearable and Recyclable Water‐Toleration Sensor Derived from Lipoic Acid

“…The GF value was calculated to be 1.53, 2.96, and 3.83 in the strain range of 0-100%, 100-500%, and 500-800%, respectively (Figure 7a), which was higher than that of most of the other strain sensors based on LA. [25,[36][37][38][39] After swelling equilibrium and then drying the ICE 3-5 sensor showed a higher GF value (Figure S18b, Supporting Information). Furthermore, Figure 7b recorded the relative resistance changes of the ICE 3-5 sensor with different tensile strains.…”

“…[18,[30][31][32][33][34] Recently, many researchers have successfully fabricated conductive elastomers based on LA. [10,24,25,[35][36][37][38][39] Despite the excellent transparency, ionic conductivity, and self-healing efficiency, most conductive elastomers suffer from a relatively low mechanical strength, especially stabilized LA by vinylic compounds. The metal ions (Fe 3+ and Al 3+ ) and double-network are hence introduced into the poly(LA) network, so as to construct multiple interactions (such as coordinate covalent bonding and hydrogen bonding) to improve the mechanics.…”

Physically entangled multifunctional eutectogels for flexible sensors with mechanically robust

“…Thus, the linear PAA and CC DES agent were probably two independent but interconnected structures in the PAA/CC system, connected by non-covalent interactions, such as hydrogen bonding, p-p, cation-p, and electrostatic interactions. 44 As shown in Fig. S5, † compared with PAA/CC, the n C]O of the carboxyl group in PAA (1700 cm −1 ) shied to 1713 cm −1 , and the g C-H of the C-H out of plane bending vibration in the benzene ring ortho disubstituted system in CC (744 cm −1 ) shied to 750 cm −1 , indicating the hydrogen bonding interactions between PAA and CC.…”

High-sensitivity and ultralow-hysteresis fluorine-rich ionogel strain sensors for multi-environment contact and contactless sensing

“…As also reported in previous studies, the high GF values of our ionogel sensor over a wide strain range may be partially attributed to the strong ion-dipole interactions between the ionic liquids and the fluorine-rich polymer network, which affect the mobility of the dissociative ions. [51][52][53] Moreover, under high tensile strain, the conformation of the network structure is also altered with a more ordered arrangement of the polymer chains, which further weakens the mobility of the dissociative ions and leads to higher GF value. 54,55 The sensitivity of our ionogel sensors is superior to most recently reported ionogel strain sensors operating in air and even more competitive for underwater sensing applications 29,30,32,41,48,50,[56][57][58][59][60] (Fig.…”